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Dephasing of a superconducting qubit induced by photon noise
P. Bertet, I. Chiorescu, G. Burkard +4
We have studied the dephasing of a superconducting flux-qubit coupled to a DC-SQUID based oscillator. By varying the bias conditions of both circuits we were able to tune their eff…
Parametric coupling for superconducting qubits
P. Bertet, C. J. P. M. Harmans, J. E. Mooij
We propose a scheme to couple two superconducting charge or flux qubits biased at their symmetry points with unequal energy splittings. Modulating the coupling constant between two…
Phase-slip flux qubits
J. E. Mooij, C. J. P. M. Harmans
In thin superconducting wires, phase-slip by thermal activation near the critical temperature is a well-known effect. It has recently become clear that phase-slip by quantum tunnel…
Dephasing of a flux-qubit coupled to a harmonic oscillator
P. Bertet, I. Chiorescu, C. J. P. M Harmans +1
Decoherence in superconducting qubits is known to arise because of a variety of environmental degrees of freedom. In this article, we focus on the influence of thermal fluctuations…