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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…
Efficient evaluation of decoherence rates in complex Josephson circuits
David P. DiVincenzo, Frederico Brito, Roger H. Koch
A complete analysis of the decoherence properties of a Josephson junction qubit is presented. The qubit is of the flux type and consists of two large loops forming a gradiometer an…
Detecting entanglement using a double quantum dot turnstile
M. Blaauboer, D. P. DiVincenzo
We propose a scheme based on using the singlet ground state of an electron spin pair in a double quantum dot nanostructure as a suitable set-up for detecting entanglement between e…