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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…
Enhancement of electron spin coherence by optical preparation of nuclear spins
Dimitrije Stepanenko, Guido Burkard, Geza Giedke +1
We study a large ensemble of nuclear spins interacting with a single electron spin in a quantum dot under optical excitation and photon detection. When a pair of applied laser fiel…
Shot noise and spin-orbit coherent control of entangled and spin polarized electrons
J. Carlos Egues, Guido Burkard, D. Saraga +2
We extend our previous work on shot noise for entangled and spin polarized electrons in a beam-splitter geometry with spin-orbit (\textit{s-o}) interaction in one of the incoming l…