Quantum impurity approach to a coupled qubit problem

Autor: Sebastien Camalet, Francois Delduc, Josef Schriefl, Pascal Degiovanni

Publikováno v: EPL-Europhysics Letters
EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2004, 68, pp.37. ⟨10.1209/epl/i2004-12019-1⟩
Europhysics Letters, 68 (1), 37-43
EPL-Europhysics Letters, 2004, 68, pp.37. ⟨10.1209/epl/i2004-12019-1⟩

We consider a system of two qubits at the ends of a finite length 1D cavity. This problem is mapped onto the double-Kondo model which is also shown to describe the low energy physics of a finite length quantum wire with resonant levels at its ends. A

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https://hal.archives-ouvertes.fr/hal-00001621