Oqc main (#194)

* Added `ParametrizedEvolution` support to OQC Lucy * feat: add Python 3.11 support (#148) * feat: add Python 3.11 support * prepare release v1.14.0 * update development version to v1.14.1.dev0 * test: parallelize test execution for pytest (#152) * prepare release v1.14.1 * update development version to v1.14.2.dev0 * feat: Add AHS devices (#158) Also made plugin compatible with new return types specification (#153) Co-authored-by: Mudit Pandey <[email protected]> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Cody Wang <[email protected]> * Postprocess jacobian result shape (#159) * fix: Tempfix for failing tests (#161) * prepare release v1.15.0 * update development version to v1.15.1.dev0 * doc: Correct README format for PyPI (#162) * prepare release v1.15.0.post0 * update development version to v1.15.1.dev0 * tests work weeeeee * Added PE to PulseSequence translation * Updated to support multiple pulses * Added comments for readability * Update src/braket/pennylane_plugin/translation.py Co-authored-by: Korbinian Kottmann <[email protected]> * Refactoring * add anharmonicities * Remove coupling from settings * add tests * tox formatting * fix code formatting issues * Added test for pulse gate translation * apply suggestions from code review * fix failing tests * docstrings * Updated translation to stop fixing amplitude * Reformatting * change name from settings to pulse_settings * Apply suggestions from code review Co-authored-by: lillian542 <[email protected]> * Added back translation for AAMS * Add `ParametrizedEvolution` to OQC Lucy's supported operations (#10) * Added `ParametrizedEvolution` support to OQC Lucy * feat: add Python 3.11 support (#148) * feat: add Python 3.11 support * prepare release v1.14.0 * update development version to v1.14.1.dev0 * test: parallelize test execution for pytest (#152) * prepare release v1.14.1 * update development version to v1.14.2.dev0 * feat: Add AHS devices (#158) Also made plugin compatible with new return types specification (#153) Co-authored-by: Mudit Pandey <[email protected]> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Cody Wang <[email protected]> * Postprocess jacobian result shape (#159) * fix: Tempfix for failing tests (#161) * prepare release v1.15.0 * update development version to v1.15.1.dev0 * doc: Correct README format for PyPI (#162) * prepare release v1.15.0.post0 * update development version to v1.15.1.dev0 * tests work weeeeee * Fixed shadow expval error --------- Co-authored-by: lillian542 <[email protected]> Co-authored-by: lillian542 <[email protected]> Co-authored-by: Abe Coull <[email protected]> Co-authored-by: ci <ci> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Cody Wang <[email protected]> * fix: constrain tensorflow version (#185) * prepare release v1.17.1 * update development version to v1.17.2.dev0 * Add `ParametrizedEvolution` to OQC Lucy's supported operations (#10) * Added `ParametrizedEvolution` support to OQC Lucy * feat: add Python 3.11 support (#148) * feat: add Python 3.11 support * prepare release v1.14.0 * update development version to v1.14.1.dev0 * test: parallelize test execution for pytest (#152) * prepare release v1.14.1 * update development version to v1.14.2.dev0 * feat: Add AHS devices (#158) Also made plugin compatible with new return types specification (#153) Co-authored-by: Mudit Pandey <[email protected]> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Cody Wang <[email protected]> * Postprocess jacobian result shape (#159) * fix: Tempfix for failing tests (#161) * prepare release v1.15.0 * update development version to v1.15.1.dev0 * doc: Correct README format for PyPI (#162) * prepare release v1.15.0.post0 * update development version to v1.15.1.dev0 * tests work weeeeee * Fixed shadow expval error --------- Co-authored-by: lillian542 <[email protected]> Co-authored-by: lillian542 <[email protected]> Co-authored-by: Abe Coull <[email protected]> Co-authored-by: ci <ci> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Cody Wang <[email protected]> * Added unit tests * Linting * Updated return value of wires * Updated variable name * Update src/braket/pennylane_plugin/translation.py Co-authored-by: lillian542 <[email protected]> * Updated tests * pulse validation * Add translation function to get `PulseGate` from `ParametrizedEvolution` (#13) * Added `ParametrizedEvolution` support to OQC Lucy * feat: add Python 3.11 support (#148) * feat: add Python 3.11 support * prepare release v1.14.0 * update development version to v1.14.1.dev0 * test: parallelize test execution for pytest (#152) * prepare release v1.14.1 * update development version to v1.14.2.dev0 * feat: Add AHS devices (#158) Also made plugin compatible with new return types specification (#153) Co-authored-by: Mudit Pandey <[email protected]> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Cody Wang <[email protected]> * Postprocess jacobian result shape (#159) * fix: Tempfix for failing tests (#161) * prepare release v1.15.0 * update development version to v1.15.1.dev0 * doc: Correct README format for PyPI (#162) * prepare release v1.15.0.post0 * update development version to v1.15.1.dev0 * tests work weeeeee * Added PE to PulseSequence translation * Updated to support multiple pulses * Added comments for readability * Update src/braket/pennylane_plugin/translation.py Co-authored-by: Korbinian Kottmann <[email protected]> * Refactoring * Added test for pulse gate translation * Updated translation to stop fixing amplitude * Reformatting * Apply suggestions from code review Co-authored-by: lillian542 <[email protected]> * Added back translation for AAMS * fix: constrain tensorflow version (#185) * prepare release v1.17.1 * update development version to v1.17.2.dev0 * Add `ParametrizedEvolution` to OQC Lucy's supported operations (#10) * Added `ParametrizedEvolution` support to OQC Lucy * feat: add Python 3.11 support (#148) * feat: add Python 3.11 support * prepare release v1.14.0 * update development version to v1.14.1.dev0 * test: parallelize test execution for pytest (#152) * prepare release v1.14.1 * update development version to v1.14.2.dev0 * feat: Add AHS devices (#158) Also made plugin compatible with new return types specification (#153) Co-authored-by: Mudit Pandey <[email protected]> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Cody Wang <[email protected]> * Postprocess jacobian result shape (#159) * fix: Tempfix for failing tests (#161) * prepare release v1.15.0 * update development version to v1.15.1.dev0 * doc: Correct README format for PyPI (#162) * prepare release v1.15.0.post0 * update development version to v1.15.1.dev0 * tests work weeeeee * Fixed shadow expval error --------- Co-authored-by: lillian542 <[email protected]> Co-authored-by: lillian542 <[email protected]> Co-authored-by: Abe Coull <[email protected]> Co-authored-by: ci <ci> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Cody Wang <[email protected]> * Added unit tests * Linting * Updated return value of wires * Updated variable name * Update pennylane version constraint (#188) * Update src/braket/pennylane_plugin/translation.py Co-authored-by: lillian542 <[email protected]> * prepare release v1.17.2 * update development version to v1.17.3.dev0 * Updated tests * fix: set do_queue default to None (#175) Co-authored-by: Cody Wang <[email protected]> * prepare release v1.17.3 * update development version to v1.17.4.dev0 * Addressed code review --------- Co-authored-by: lillian542 <[email protected]> Co-authored-by: lillian542 <[email protected]> Co-authored-by: Abe Coull <[email protected]> Co-authored-by: ci <ci> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Cody Wang <[email protected]> Co-authored-by: Stephen Face <[email protected]> Co-authored-by: Kshitij Chhabra <[email protected]> * remove unwanted changes to translation.py * revert unwanted changes to shadow_expval tests * fix typo from last commit * remove unwanted changes to test_translation * linting * more lint * raise clear NotImplementedError if pulse properties are called on other devices * update tests * Fix formatting * clean up after merge conflict * warn if pulse settings don't match * update validation functions * add tests that mostly work * working freq range test * tox formatting * allow qml.pulse.constant as constant parameters * Apply suggestions from code review * Added callable related changes to translation * Fix compatibility with the new Projector class (#189) * Fix attempt * support tests * Test error when not in Z basis * fix formatting * prepare release v1.17.4 * update development version to v1.17.5.dev0 * infra: Update CODEOWNERS (#184) Co-authored-by: Abe Coull <[email protected]> * feat: native mode (#187) You can now specify `verbatim` when creating a device to run tasks in verbatim mode. This enables using native gates on QPUs. * prepare release v1.18.0 * update development version to v1.18.1.dev0 * Adding docs * Updated docs * Updated white spacing * Updated docs * Pulse validation (#14) * Updated translation to stop fixing amplitude * Reformatting * Apply suggestions from code review Co-authored-by: lillian542 <[email protected]> * Added back translation for AAMS * fix: constrain tensorflow version (#185) * prepare release v1.17.1 * update development version to v1.17.2.dev0 * Add `ParametrizedEvolution` to OQC Lucy's supported operations (#10) * Added `ParametrizedEvolution` support to OQC Lucy * feat: add Python 3.11 support (#148) * feat: add Python 3.11 support * prepare release v1.14.0 * update development version to v1.14.1.dev0 * test: parallelize test execution for pytest (#152) * prepare release v1.14.1 * update development version to v1.14.2.dev0 * feat: Add AHS devices (#158) Also made plugin compatible with new return types specification (#153) Co-authored-by: Mudit Pandey <[email protected]> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Cody Wang <[email protected]> * Postprocess jacobian result shape (#159) * fix: Tempfix for failing tests (#161) * prepare release v1.15.0 * update development version to v1.15.1.dev0 * doc: Correct README format for PyPI (#162) * prepare release v1.15.0.post0 * update development version to v1.15.1.dev0 * tests work weeeeee * Fixed shadow expval error --------- Co-authored-by: lillian542 <[email protected]> Co-authored-by: lillian542 <[email protected]> Co-authored-by: Abe Coull <[email protected]> Co-authored-by: ci <ci> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Cody Wang <[email protected]> * Added unit tests * Linting * Updated return value of wires * Updated variable name * Update src/braket/pennylane_plugin/translation.py Co-authored-by: lillian542 <[email protected]> * Updated tests * pulse validation * clean up after merge conflict * warn if pulse settings don't match * update validation functions * add tests that mostly work * working freq range test * tox formatting * allow qml.pulse.constant as constant parameters * Apply suggestions from code review * Added callable related changes to translation * Fix compatibility with the new Projector class (#189) * Fix attempt * support tests * Test error when not in Z basis * fix formatting * prepare release v1.17.4 * update development version to v1.17.5.dev0 * infra: Update CODEOWNERS (#184) Co-authored-by: Abe Coull <[email protected]> * feat: native mode (#187) You can now specify `verbatim` when creating a device to run tasks in verbatim mode. This enables using native gates on QPUs. * prepare release v1.18.0 * update development version to v1.18.1.dev0 --------- Co-authored-by: Mudit Pandey <[email protected]> Co-authored-by: Stephen Face <[email protected]> Co-authored-by: ci <ci> Co-authored-by: Abe Coull <[email protected]> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Cody Wang <[email protected]> Co-authored-by: BorjaRequena <[email protected]> Co-authored-by: Aaron Berdy <[email protected]> * remove custom wire logic * use AwsDevice instead of BraketAwsQubitDevice * remove stray print statement * use ConstantWaveform for pulse.constant * chronological wire ordering * update docstring * further clarify docstring * clarify comment in validate_pulse_parameters * update _is_single_qubit_12_frame error message * make device required for ParametrizedEvolution dispatch * update documentation * black * update check_validity * received * update units documentation * fix formatting * add integration test * black formatting * handle device offline in integ tests * remove unused import in test file --------- Co-authored-by: lillian542 <[email protected]> Co-authored-by: lillian542 <[email protected]> Co-authored-by: Mudit Pandey <[email protected]> Co-authored-by: Abe Coull <[email protected]> Co-authored-by: ci <ci> Co-authored-by: Christina Lee <[email protected]> Co-authored-by: Tom Bromley <[email protected]> Co-authored-by: Korbinian Kottmann <[email protected]> Co-authored-by: David Wierichs <[email protected]> Co-authored-by: Stephen Face <[email protected]> Co-authored-by: Kshitij Chhabra <[email protected]> Co-authored-by: BorjaRequena <[email protected]> Co-authored-by: Aaron Berdy <[email protected]>
amazon-braket · Aug 17, 2023 · 5ed3c30 · 5ed3c30
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diff --git a/doc/devices/braket_remote.rst b/doc/devices/braket_remote.rst
@@ -99,10 +99,52 @@ from :mod:`braket.pennylane_plugin.ops <.ops>`:
     braket.pennylane_plugin.GPi2
     braket.pennylane_plugin.MS
 
+Pulse Programming
+~~~~~~~~~~~~~~~~~
+
+The PennyLane-Braket plugin provides pulse-level control for the OQC Lucy QPU through PennyLane's `ParametrizedEvolution <https://docs.pennylane.ai/en/latest/code/api/pennylane.pulse.ParametrizedEvolution.html>`_
+operation. Compatible pulse Hamiltonians can be defined using the `qml.pulse.transmon_drive <https://docs.pennylane.ai/en/latest/code/api/pennylane.pulse.transmon_drive.html>`_
+function and used to create ``ParametrizedEvolution``'s using `qml.evolve <https://docs.pennylane.ai/en/stable/code/api/pennylane.evolve.html>`_:
+
+.. code-block:: python
+
+    duration = 15
+    def amp(p, t):
+        return qml.pulse.pwc(duration)(p, t)
+
+    dev = qml.device("braket.aws.qubit", wires=8, device_arn="arn:aws:braket:eu-west-2::device/qpu/oqc/Lucy")
+
+    drive = qml.pulse.transmon.transmon_drive(amplitude=amp, phase=0, freq=4.8, wires=[0])
+
+    @qml.qnode(dev)
+    def circuit(params, t):
+        qml.evolve(drive)(params, t)
+        return qml.expval(qml.PauliZ(wires=0))
+
+Note that the ``freq`` argument of ``qml.pulse.transmon_drive`` is specified in GHz, and for
+hardware upload the amplitude will be interpreted as an output power for control hardware in volts.
+The ``phase`` must be specified in radians.
+
+The pulse settings for the device can be obtained using the ``pulse_settings`` property. These settings can be used to describe the transmon
+interaction Hamiltonian using `qml.pulse.transmon_interaction <https://docs.pennylane.ai/en/latest/code/api/pennylane.pulse.transmon_interaction.html>`_:
+
+    .. code-block:: python
+
+        dev = qml.device("braket.aws.qubit", wires=8, device_arn="arn:aws:braket:eu-west-2::device/qpu/oqc/Lucy")
+        pulse_settings = dev.pulse_settings
+        couplings = [0.01]*len(connections)
+        H = qml.pulse.transmon_interaction(**pulse_settings, coupling=couplings)
+
+By passing ``pulse_settings`` from the remote device to ``qml.pulse.transmon_interaction``, an ``H`` Hamiltonian term is created using
+the constants specific to the hardware. This is relevant for simulating the hardware in PennyLane on the ``default.qubit`` device.
+
+Note that the user must supply coupling coefficients, as these are not available from the hardware backend. On the order of 10 MHz
+(0.01 GHz) is in a realistic range.
 
 Gradient computation on Braket with a QAOA Hamiltonian
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Currently, PennyLane will compute grouping indices for QAOA Hamiltonians and use them to split the Hamiltonian into multiple expectation values. If you wish to use `SV1’s adjoint differentiation capability<https://docs.aws.amazon.com/braket/latest/developerguide/hybrid.html>` when running QAOA from PennyLane, you will need reconstruct the cost Hamiltonian to remove the grouping indices from the cost Hamiltonian, like so:
+
+Currently, PennyLane will compute grouping indices for QAOA Hamiltonians and use them to split the Hamiltonian into multiple expectation values. If you wish to use `SV1’s adjoint differentiation capability <https://docs.aws.amazon.com/braket/latest/developerguide/hybrid.html>`_ when running QAOA from PennyLane, you will need reconstruct the cost Hamiltonian to remove the grouping indices from the cost Hamiltonian, like so:
 
 .. code-block:: python
 

diff --git a/doc/requirements.txt b/doc/requirements.txt
@@ -1,4 +1,4 @@
 sphinx
 sphinx-automodapi
-pennylane>=0.23.0
+pennylane>=0.31.0
 pennylane-sphinx-theme
diff --git a/src/braket/pennylane_plugin/braket_device.py b/src/braket/pennylane_plugin/braket_device.py
@@ -35,6 +35,7 @@
 
 import collections
 import numbers
+import warnings
 
 # pylint: disable=invalid-name
 from enum import Enum, auto
@@ -426,12 +427,15 @@ def apply(
                 else:
                     param_names.append(None)
                 param_index += 1
+
+            dev_wires = self.map_wires(operation.wires).tolist()
             gate = translate_operation(
                 operation,
                 use_unique_params=bool(trainable_indices) or use_unique_params,
                 param_names=param_names,
+                device=self._device,
             )
-            dev_wires = self.map_wires(operation.wires).tolist()
+
             ins = Instruction(gate, dev_wires)
             circuit.add_instruction(ins)
 
@@ -714,6 +718,124 @@ def _run_snapshots(self, snapshot_circuits, n_qubits, mapped_wires):
 
         return outcomes
 
+    def _check_pulse_frequency_validity(self, ev):
+        """Confirm that, for each waveform on the ParametrizedEvolution operator, the frequency
+        setting is a constant, and the value is within the frequency range for the relevant frame;
+        if not, raise an error"""
+
+        # confirm all frequency values are constant (or the qml.pulse.constant function)
+        callable_freqs = [
+            pulse.frequency
+            for pulse in ev.H.pulses
+            if (callable(pulse.frequency) and pulse.frequency != qml.pulse.constant)
+        ]
+
+        if callable_freqs:
+            raise RuntimeError(
+                "Expected all frequencies to be constants or qml.pulse.constant, "
+                "but received callable(s)"
+            )
+
+        # confirm all frequencies are within permitted difference from center frequency
+        freq_diff = (
+            self._device.properties.pulse.validationParameters["PERMITTED_FREQUENCY_DIFFERENCE"]
+            * 1e9
+        )
+        param_idx = 0
+        for pulse in ev.H.pulses:
+            freq = pulse.frequency
+            # track the index for parameters in case we need to evaluate qml.pulse.constant
+            if callable(pulse.amplitude):
+                param_idx += 1
+            if callable(pulse.phase):
+                param_idx += 1
+            if callable(pulse.frequency):
+                # if frequency is callable, its qml.pulse.constant and equal to its parameter
+                freq = ev.parameters[param_idx]
+                param_idx += 1
+
+            wires = self.map_wires(pulse.wires).tolist()
+
+            for wire in wires:
+                frame_key = f"q{wire}_drive"
+                center_freq = self._device.properties.pulse.dict()["frames"][frame_key][
+                    "centerFrequency"
+                ]
+                freq_min = center_freq - freq_diff
+                freq_max = center_freq + freq_diff
+                if not (freq_min < freq * 1e9 < freq_max):
+                    raise RuntimeError(
+                        f"Frequency range for wire {wire} is between {freq_min * 1e-9} "
+                        f"and {freq_max * 1e-9} GHz, but recieved {freq} GHz."
+                    )
+
+    def _validate_pulse_parameters(self, ev):
+        """Validates pulse input (ParametrizedEvolution) before converting to a PulseGate"""
+
+        # note: the pulse upload on the AWS service checks at task creation that the max amplitude
+        # is not exceeded, so that check has not been included here
+
+        # confirm frequencies are constant and within the permitted frequency range for the channel
+        self._check_pulse_frequency_validity(ev)
+
+        # confirm all phase values are constant (or the qml.pulse.constant function)
+        callable_phase = [
+            pulse.phase
+            for pulse in ev.H.pulses
+            if (callable(pulse.phase) and pulse.phase != qml.pulse.constant)
+        ]
+
+        if callable_phase:
+            raise RuntimeError(
+                "Expected all phases to be constants or qml.pulse.constant, "
+                "but received callable(s)"
+            )
+
+        # ensure each ParametrizedEvolution/PulseGate contains at most one waveform per frame/wire
+        wires_used = []
+        for pulse in ev.H.pulses:
+            for wire in pulse.wires:
+                if wire in wires_used:
+                    raise RuntimeError(
+                        f"Multiple waveforms assigned to wire {wire} in the same "
+                        f"ParametrizedEvolution gate"
+                    )
+                wires_used.append(wire)
+
+        if ev.H.settings:
+            warnings.warn(
+                "The ParametrizedEvolution contains settings from an interaction term "
+                "`qml.pulse.transmon_interaction`. Please note that the settings passed to the "
+                "interaction term are not used for hardware upload. All parameters used in the "
+                "interaction term are set by the physical device."
+            )
+
+    def check_validity(self, queue, observables):
+        """Check validity of pulse operations before running the standard check_validity function
+
+        Checks whether the operations and observables in queue are all supported by the device. Runs
+        the standard check_validity function for a PennyLane device, and an additional check to
+        validate any pulse-operations in the form of a ParametrizedEvolution operation.
+
+        Args:
+            queue (Iterable[~.operation.Operation]): quantum operation objects which are intended
+                to be applied on the device
+            observables (Iterable[~.operation.Observable]): observables which are intended
+                to be evaluated on the device
+
+        Raises:
+            DeviceError: if there are operations in the queue or observables that the device does
+                not support
+            RuntimeError: if there are ParametrizedEvolution operations in the queue that are not
+                supported because of invalid pulse parameters
+        """
+
+        super().check_validity(queue, observables)
+
+        for op in queue:
+            if isinstance(op, qml.pulse.ParametrizedEvolution):
+                self._validate_pulse_parameters(op)
+
     def capabilities(self=None):
         """Add support for AG on sv1"""
         # normally, we'd just call super().capabilities() here, but super()
@@ -763,6 +885,109 @@ def execute_and_gradients(self, circuits, **kwargs):
         res = res[0] if len(res) == 1 and active_jac else res
         return res, jacs
 
+    def _is_single_qubit_01_frame(self, f_string, wire=None):
+        """Defines the condition for selecting frames addressing the qubit (01)
+        drive based on frame name"""
+        if self._device.arn == "arn:aws:braket:eu-west-2::device/qpu/oqc/Lucy":
+            if wire is not None:
+                return f_string == f"q{wire}_drive"
+            return "drive" in f_string
+        else:
+            raise NotImplementedError(
+                f"Single-qubit drive frame for pulse control not defined for "
+                f"device {self._device.arn}"
+            )
+
+    def _is_single_qubit_12_frame(self, f_string, wire=None):
+        """Defines the condition for selecting frames addressing excitation to
+        the second excited state based on frame name"""
+        if self._device.arn == "arn:aws:braket:eu-west-2::device/qpu/oqc/Lucy":
+            if wire is not None:
+                return f_string == f"q{wire}_second_state"
+            return "second_state" in f_string
+        else:
+            raise NotImplementedError(
+                f"Second excitation drive frame for pulse control not defined for "
+                f"device {self._device.arn}"
+            )
+
+    def _get_frames(self, filter, wires):
+        """Takes a filter defining how the relevant frames are labelled, and returns all the frames
+        that fit, i.e.:
+
+        cond = lambda frame_id, wire: f"q{wire}_drive" == frame_id
+        frames = self._get_frames(cond, wires=[0, 1, 2])
+
+        would return all the frames with ids "q0_drive" "q1_drive", and "q2_drive", stored
+        in a dictionary with keys [0, 1, 2] identifying the qubit number.
+        """
+        if not self._device.arn == "arn:aws:braket:eu-west-2::device/qpu/oqc/Lucy":
+            raise NotImplementedError(
+                f"Accessing drive frame for pulse control is not defined for "
+                f"device {self._device.arn}"
+            )
+
+        frames = {}
+        for wire in wires:
+            for frame, info in self._device.properties.pulse.dict()["frames"].items():
+                if filter(frame, wire):
+                    frames[wire] = info
+
+        return frames
+
+    @property
+    def pulse_settings(self):
+        """Dictionary of constants set by the hardware (qubit resonant frequencies,
+        inter-qubit connection graph, wires and anharmonicities).
+
+        Used to enable initializing hardware-consistent Hamiltonians by returning
+        values that would need to be passed, i.e.:
+
+            >>> dev_remote = qml.device('braket.aws.qubit',
+            >>>                          wires=8,
+            >>>                          arn='arn:aws:braket:eu-west-2::device/qpu/oqc/Lucy')
+            >>> pulse_settings = dev_remote.pulse_settings
+            >>> H_int = qml.pulse.transmon_interaction(**pulse_settings, coupling=0.02)
+
+        By passing the ``pulse_settings`` from the remote device to ``transmon_interaction``, an
+        ``H_int`` Hamiltonian term is created using the constants specific to the hardware.
+        This is relevant for simulating the hardware in PennyLane on the ``default.qubit`` device.
+
+        Note that the user must supply coupling coefficients, as these are not available from the
+        hardware backend.
+        """
+        if not self._device.arn == "arn:aws:braket:eu-west-2::device/qpu/oqc/Lucy":
+            raise NotImplementedError(
+                f"The pulse_settings property for pulse control is not defined for "
+                f"device {self._device.arn}"
+            )
+
+        device_info = self._device.properties.paradigm
+        wires = [i for i in range(device_info.qubitCount)]
+
+        drive_frames_01 = self._get_frames(filter=self._is_single_qubit_01_frame, wires=wires)
+        drive_frames_12 = self._get_frames(filter=self._is_single_qubit_12_frame, wires=wires)
+
+        qubit_freq = [drive_frames_01[wire]["frequency"] * 1e-9 for wire in wires]  # Hz to GHz
+
+        connections = []
+        for q1, connected_qubits in device_info.connectivity.connectivityGraph.items():
+            for q2 in connected_qubits:
+                connection = (int(q1), int(q2))
+                connections.append(connection)
+
+        anharmonicity = [
+            (drive_frames_01[wire]["frequency"] - drive_frames_12[wire]["frequency"]) * 1e-9
+            for wire in self.wires
+        ]
+
+        return {
+            "qubit_freq": qubit_freq,
+            "connections": connections,
+            "wires": wires,
+            "anharmonicity": anharmonicity,
+        }
+
 
 class BraketLocalQubitDevice(BraketQubitDevice):
     r"""Amazon Braket LocalSimulator qubit device for PennyLane.