qiskit.pulse.SetFrequency
class SetFrequency(frequency, channel, name=None)
Set the channel frequency. This instruction operates on PulseChannel s. A PulseChannel creates pulses of the form
Here, is the frequency of the channel. The instruction SetFrequency allows the user to set the value of . All pulses that are played on a channel after SetFrequency has been called will have the corresponding frequency.
The duration of SetFrequency is 0.
Creates a new set channel frequency instruction.
Parameters
- frequency (
Union[float,ParameterExpression]) – New frequency of the channel in Hz. - channel (
PulseChannel) – The channel this instruction operates on. - name (
Optional[str]) – Name of this set channel frequency instruction.
__init__
__init__(frequency, channel, name=None)
Creates a new set channel frequency instruction.
Parameters
- frequency (
Union[float,ParameterExpression]) – New frequency of the channel in Hz. - channel (
PulseChannel) – The channel this instruction operates on. - name (
Optional[str]) – Name of this set channel frequency instruction.
Methods
__init__(frequency, channel[, name]) | Creates a new set channel frequency instruction. |
append(schedule[, name]) | Return a new Schedule with schedule inserted at the maximum time over all channels shared between self and schedule. |
assign_parameters(value_dict) | Modify and return self with parameters assigned according to the input. |
ch_duration(*channels) | Return duration of the supplied channels in this Instruction. |
ch_start_time(*channels) | Return minimum start time for supplied channels. |
ch_stop_time(*channels) | Return maximum start time for supplied channels. |
draw([dt, style, filename, interp_method, …]) | Plot the instruction. |
flatten() | Return itself as already single instruction. |
insert(start_time, schedule[, name]) | Return a new Schedule with schedule inserted within self at start_time. |
shift(time[, name]) | Return a new schedule shifted forward by time. |
Attributes
channel | Return the Channel that this instruction is scheduled on. |
channels | Returns channels that this schedule uses. |
command | The associated command. |
duration | Duration of this instruction. |
frequency | New frequency. |
id | Unique identifier for this instruction. |
instructions | Iterable for getting instructions from Schedule tree. |
name | Name of this instruction. |
operands | Return instruction operands. |
start_time | Relative begin time of this instruction. |
stop_time | Relative end time of this instruction. |
timeslots | Occupied time slots by this instruction. |
append
append(schedule, name=None)
Return a new Schedule with schedule inserted at the maximum time over all channels shared between self and schedule.
Parameters
- schedule (
ScheduleComponent) – schedule to be appended - name (
Optional[str]) – Name of the new schedule. Defaults to name of self
Return type
Schedule
assign_parameters
assign_parameters(value_dict)
Modify and return self with parameters assigned according to the input.
Parameters
value_dict (Dict[ParameterExpression, Union[ParameterExpression, float, int]]) – A mapping from Parameters to either numeric values or another Parameter expression.
Return type
Instruction
Returns
Self with updated parameters.
ch_duration
ch_duration(*channels)
Return duration of the supplied channels in this Instruction.
Parameters
*channels – Supplied channels
Return type
int
ch_start_time
ch_start_time(*channels)
Return minimum start time for supplied channels.
Parameters
*channels – Supplied channels
Return type
int
ch_stop_time
ch_stop_time(*channels)
Return maximum start time for supplied channels.
Parameters
*channels – Supplied channels
Return type
int
channel
channels
command
The associated command. Commands are deprecated, so this method will be deprecated shortly.
Returns
The deprecated command if available.
Return type
draw
draw(dt=1, style=None, filename=None, interp_method=None, scale=1, plot_all=False, plot_range=None, interactive=False, table=True, label=False, framechange=True, channels=None)
Plot the instruction.
Parameters
- dt (
float) – Time interval of samples - style (Optional[SchedStyle]) – A style sheet to configure plot appearance
- filename (
Optional[str]) – Name required to save pulse image - interp_method (
Optional[Callable]) – A function for interpolation - scale (
float) – Relative visual scaling of waveform amplitudes - plot_all (
bool) – Plot empty channels - plot_range (
Optional[Tuple[float]]) – A tuple of time range to plot - interactive (
bool) – When set true show the circuit in a new window (this depends on the matplotlib backend being used supporting this) - table (
bool) – Draw event table for supported instructions - label (
bool) – Label individual instructions - framechange (
bool) – Add framechange indicators - channels (
Optional[List[Channel]]) – A list of channel names to plot
Returns
A matplotlib figure object of the pulse schedule
Return type
matplotlib.figure
duration
Duration of this instruction.
Return type
int
flatten
flatten()
Return itself as already single instruction.
Return type
Instruction
frequency
New frequency.
Return type
Union[float, ParameterExpression]
id
Unique identifier for this instruction.
Return type
int
insert
insert(start_time, schedule, name=None)
Return a new Schedule with schedule inserted within self at start_time.
Parameters
- start_time (
int) – Time to insert the schedule schedule - schedule (
ScheduleComponent) – Schedule to insert - name (
Optional[str]) – Name of the new schedule. Defaults to name of self
Return type
Schedule
instructions
Iterable for getting instructions from Schedule tree.
Return type
Tuple[Tuple[int, Instruction]]
name
Name of this instruction.
Return type
str
operands
Return instruction operands.
Return type
Tuple
shift
shift(time, name=None)
Return a new schedule shifted forward by time.
Parameters
- time (
int) – Time to shift by - name (
Optional[str]) – Name of the new schedule. Defaults to name of self
Return type
Schedule
start_time
Relative begin time of this instruction.
Return type
int
stop_time
Relative end time of this instruction.
Return type
int