32 lines
1.2 KiB
Plaintext
32 lines
1.2 KiB
Plaintext
---
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title: t1_circuits
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description: API reference for qiskit.ignis.characterization.t1_circuits
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in_page_toc_min_heading_level: 1
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python_api_type: function
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python_api_name: qiskit.ignis.characterization.t1_circuits
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---
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# qiskit.ignis.characterization.t1\_circuits
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<Function id="qiskit.ignis.characterization.t1_circuits" isDedicatedPage={true} github="https://github.com/qiskit-community/qiskit-ignis/tree/stable/0.6/qiskit/ignis/characterization/coherence/circuits.py" signature="t1_circuits(num_of_gates, gate_time, qubits)">
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Generate circuits for T1 measurement.
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Each circuit consists of an X gate, followed by a sequence of identity gates.
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**Parameters**
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* **num\_of\_gates** (`Union`\[`List`\[`int`], `array`]) – the number of identity gates in each circuit. Must be in an increasing order.
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* **gate\_time** (`float`) – time of running a single identity gate.
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* **qubits** (`List`\[`int`]) – indices of the qubits whose T1‘s are to be measured.
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**Return type**
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`Tuple`\[`List`\[`QuantumCircuit`], `array`]
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**Returns**
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* Generated circuits
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* Delay times, i.e., gate\_time multiplied by the numbers in num\_of\_gates
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</Function>
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