# qiskit_aer.noise.device.thermal_relaxation_values¶

thermal_relaxation_values(properties)[source]

Return T1, T2 and frequency values from a devices BackendProperties.

Paramètres

properties (BackendProperties) – device backend properties

Renvoie

A list of tuples (T1, T2, freq) for each qubit in the device. If $$T_1$$, $$T_2$$, or frequency cannot be found for qubit a value of Numpy.inf will be used.

Type renvoyé

list

$$T_1$$ and $$T_2$$ values are returned in nanosecond (ns) units and frequency is returned in gigahertz (GHz) units if unit for each value is provided in properties. Otherwise, the raw values (in unknown original units) are returned.