---
title: Fake27QPulseV1 (v1.1)
description: API reference for qiskit.providers.fake_provider.Fake27QPulseV1 in qiskit v1.1
source: https://quantum.cloud.ibm.com/docs/en/api/qiskit/1.1/qiskit.providers.fake_provider.Fake27QPulseV1
---

# Fake27QPulseV1

*class* `qiskit.providers.fake_provider.Fake27QPulseV1`

[GitHub](https://github.com/Qiskit/qiskit/tree/stable/1.1/qiskit/providers/fake_provider/backends_v1/fake_27q_pulse/fake_27q_pulse_v1.py#L21-L50)

Bases: [`FakePulseBackend`](/docs/api/qiskit/1.1/providers_fake_provider#qiskit.providers.fake_provider.FakePulseBackend "qiskit.providers.fake_provider.fake_pulse_backend.FakePulseBackend")

A fake **pulse** backend with the following characteristics:

- num\_qubits: 27

- coupling\_map:

  > ```text
  >                06                  17
  >                ↕                    ↕
  > 00 ↔ 01 ↔ 04 ↔ 07 ↔ 10 ↔ 12 ↔ 15 ↔ 18 ↔ 20 ↔ 23
  >      ↕                   ↕                    ↕
  >      02                  13                  24
  >      ↕                   ↕                    ↕
  >      03 ↔ 05 ↔ 08 ↔ 11 ↔ 14 ↔ 16 ↔ 19 ↔ 22 ↔ 25 ↔ 26
  >                ↕                    ↕
  >                09                  20
  > ```

- basis\_gates: `["id", "rz", "sx", "x", "cx", "reset"]`

- **scheduled instructions:**

  \# `{'id', 'rz', 'u2', 'x', 'u3', 'sx', 'measure', 'u1'}` for all individual qubits # `{'cx'}` for all edges # `{'measure'}` for (0, …, 26)

FakeBackend initializer.

**Parameters**

- **configuration** ([*BackendConfiguration*](/docs/api/qiskit/1.1/qiskit.providers.models.BackendConfiguration "qiskit.providers.models.BackendConfiguration")) – backend configuration
- **time\_alive** ([*int*](https://docs.python.org/3/library/functions.html#int)) – time to wait before returning result

## Attributes

### backend\_name

Default value: `'fake_27q_pulse_v1'`

### conf\_filename

Default value: `'conf_hanoi.json'`

### defs\_filename

Default value: `'defs_hanoi.json'`

### dirname

Default value: `'/home/runner/work/qiskit/qiskit/.tox/docs/lib/python3.9/site-packages/qiskit/providers/fake_provider/backends_v1/fake_27q_pulse'`

### options

Return the options for the backend

The options of a backend are the dynamic parameters defining how the backend is used. These are used to control the [`run()`](#qiskit.providers.fake_provider.Fake27QPulseV1.run "qiskit.providers.fake_provider.Fake27QPulseV1.run") method.

### props\_filename

Default value: `'props_hanoi.json'`

### version

Default value: `1`

## Methods

### configuration

`configuration()`

[GitHub](https://github.com/Qiskit/qiskit/tree/stable/1.1/qiskit/providers/backend.py#L135-L141)

Return the backend configuration.

**Returns**

the configuration for the backend.

**Return type**

[BackendConfiguration](/docs/api/qiskit/1.1/qiskit.providers.models.BackendConfiguration "qiskit.providers.models.BackendConfiguration")

### defaults

`defaults()`

[GitHub](https://github.com/Qiskit/qiskit/tree/stable/1.1/qiskit/providers/fake_provider/fake_pulse_backend.py#L29-L33)

Returns a snapshot of device defaults

### name

`name()`

[GitHub](https://github.com/Qiskit/qiskit/tree/stable/1.1/qiskit/providers/backend.py#L174-L180)

Return the backend name.

**Returns**

the name of the backend.

**Return type**

[str](https://docs.python.org/3/library/stdtypes.html#str)

### properties

`properties()`

[GitHub](https://github.com/Qiskit/qiskit/tree/stable/1.1/qiskit/providers/fake_provider/fake_qasm_backend.py#L44-L48)

Returns a snapshot of device properties

### provider

`provider()`

[GitHub](https://github.com/Qiskit/qiskit/tree/stable/1.1/qiskit/providers/backend.py#L152-L158)

Return the backend Provider.

**Returns**

the Provider responsible for the backend.

**Return type**

[Provider](/docs/api/qiskit/1.1/qiskit.providers.Provider "qiskit.providers.Provider")

### run

`run(run_input, **kwargs)`

[GitHub](https://github.com/Qiskit/qiskit/tree/stable/1.1/qiskit/providers/fake_provider/fake_backend.py#L130-L158)

Main job in simulator

### set\_options

`set_options(**fields)`

[GitHub](https://github.com/Qiskit/qiskit/tree/stable/1.1/qiskit/providers/backend.py#L116-L133)

Set the options fields for the backend

This method is used to update the options of a backend. If you need to change any of the options prior to running just pass in the kwarg with the new value for the options.

**Parameters**

**fields** – The fields to update the options

**Raises**

[**AttributeError**](https://docs.python.org/3/library/exceptions.html#AttributeError) – If the field passed in is not part of the options

### status

`status()`

[GitHub](https://github.com/Qiskit/qiskit/tree/stable/1.1/qiskit/providers/backend.py#L160-L172)

Return the backend status.

**Returns**

the status of the backend.

**Return type**

[BackendStatus](/docs/api/qiskit/1.1/qiskit.providers.models.BackendStatus "qiskit.providers.models.BackendStatus")