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Tunneling out of metastable vacuum in a system consisting of two capacitively coupled phase qubits

Andrei Galiautdinov
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Abstract

Using a powerful combination of Coleman's instanton technique and the method of Banks and Bender, the exponential factor for the zero temperature rate of tunneling out of metastable vacuum in a system of two identical capacitively coupled phase qubits is calculated in closed form to second order in asymmetry parameter for a special case of intermediate coupling C=C_J/2.

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Andrei Galiautdinov. 2005-12-17. Tunneling out of metastable vacuum in a system consisting of two capacitively coupled phase qubits. https://doi.org/10.1103/physrevb.73.064509

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