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arXiv · 1011.5598

Dissipative dynamics of a two-qubit system: Four-level lasing

E. A. Temchenko·S. N. Shevchenko·A. N. Omelyanchouk
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Abstract

The dissipative dynamics of a two-qubit system is studied theoretically. We make use of the Bloch-Redfield formalism which explicitly includes the parameter-dependent relaxation rates. We consider the case of two flux qubits, when the controlling parameters are the partial magnetic fluxes through the qubits' loops. The strong dependence of the inter-level relaxation rates on the controlling magnetic fluxes is demonstrated for the realistic system. This allows us to propose several mechanisms for lasing in this four-level system.

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E. A. Temchenko, S. N. Shevchenko, A. N. Omelyanchouk. 2011-04-14. Dissipative dynamics of a two-qubit system: Four-level lasing. https://doi.org/10.1103/physrevb.83.144507

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