Contains the gate library for the Qblox backend.

Module Contents#



Reset a qubit to the \(|0\rangle\) state.

class ConditionalReset(qubit_name: str, name: str = 'conditional_reset', **kwargs)[source]#

Bases: quantify_scheduler.schedules.schedule.Schedule

Reset a qubit to the \(|0\rangle\) state.

The ConditionalReset gate is a conditional gate that first measures the state of the qubit using an ThresholdedAcquisition operation and then performs a \(\pi\) rotation on the condition that the measured state is \(|1\rangle\). If the measured state is in \(|0\rangle\), the hardware will wait the same amount of time the \(\pi\) rotation would’ve taken to ensure that total execution time of ConditionalReset is the same regardless of the measured state.


The total time of the the ConditionalReset is the sum of

  1. integration time (<qubit>.measure.integration_time)

  2. acquisition delay (<qubit>.measure.acq_delay)

  3. trigger delay (364ns)

  4. pi-pulse duration (<qubit>.rxy.duration)

  5. idle time (4ns)


Due to current hardware limitations, overlapping conditional resets might not work correctly if multiple triggers are sent within a 364ns window. See Conditional Playback for more information.


ConditionalReset is currently implemented as a subschedule, but can be added to an existing schedule as if it were a gate. See examples below.

  • name (str) – The name of the conditional subschedule, by default “conditional_reset”.

  • qubit_name (str) – The name of the qubit to reset to the \(|0\rangle\) state.

  • **kwargs – Additional keyword arguments are passed to Measure. e.g. acq_channel, acq_index, and bin_mode.



from quantify_scheduler.backends.qblox.operations.gate_library import ConditionalReset
from quantify_scheduler.schedules.schedule import Schedule

schedule = Schedule("example schedule")