Add support for reset operation -> which helps in resetting qubit to |0> state

[Ashish0253]

reset feature which is available on qiskit is required in braket to make use of less number of qubits and make programs efficient and small. Please add it as soon as possible as I am implementing Shor's Algo and reset functionality makes it faster and efficient.

[rmshaffer]

Note this would be required in order to address qiskit-community/qiskit-braket-provider#186

[skushagra]

Hi @rmshaffer

Anything going on this issu? Is the reset implemented?

[rmshaffer]

The generic reset command is not available yet. However, there is now a way to do a mid-circuit reset for IQM's Garnet and Emerald devices on Braket using the Dynamic Circuits capabilities.

This example notebook has a section called "Hello Reset!" which shows the basic implementation - I'll copy/paste the code snippet here.

from braket.circuits import Circuit
from braket.experimental_capabilities import EnableExperimentalCapability

with EnableExperimentalCapability():
    circuit = Circuit()
    circuit.prx(1, pi/2, 0.0)
    circuit.measure_ff(1, 1)
    circuit.cc_prx(1, pi, .0, 1)
    circuit = Circuit().add_verbatim_box(circuit)

    print(circuit)

    res0 = qd.run(circuit, shots=100).result()
    print(res0.measurement_counts)

The combination of measure_ff and cc_prx calls effectively performs an active reset on qubit number 1.

See here for full set of examples using Dynamic Circuits: https://github.com/amazon-braket/amazon-braket-examples/tree/main/examples/experimental_capabilities/dynamic_circuits