PMID: 19113603Dec 31, 2008Paper

Process tomography of field damping and measurement of Fock state lifetimes by quantum nondemolition photon counting in a cavity

Physical Review Letters
M BruneS Haroche

Abstract

The relaxation of a quantum field stored in a high-Q superconducting cavity is monitored by nonresonant Rydberg atoms. The field, subjected to repetitive quantum nondemolition photon counting, undergoes jumps between photon number states. We select ensembles of field realizations evolving from a given Fock state and reconstruct the subsequent evolution of their photon number distributions. We realize in this way a tomography of the photon number relaxation process yielding all the jump rates between Fock states. The damping rates of the n photon states (0 < or = n < or = 7) are found to increase linearly with n. The results are in excellent agreement with theory including a small thermal contribution.

References

Sep 28, 2004·Physical Review Letters·J L O'BrienA G White
Dec 13, 2006·Physical Review Letters·M RiebeR Blatt
Mar 16, 2007·Nature·Sébastien GleyzesSerge Haroche
Aug 24, 2007·Nature·Christine GuerlinSerge Haroche
Jul 18, 2008·Nature·Max HofheinzA N Cleland
Dec 31, 2008·Physical Review Letters·H WangJohn M Martinis

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Citations

Aug 8, 2009·Science·Matthew NeeleyJohn M Martinis
Mar 31, 2015·Scientific Reports·Ping-Yuan LoWei-Min Zhang
Sep 3, 2011·Nature·Clément SayrinSerge Haroche
Sep 26, 2012·Physical Review Letters·X ZhouS Haroche
Jan 30, 2016·Physical Review Letters·Keyu XiaJason Twamley
Sep 28, 2010·Physical Review Letters·B PeropadreJ J García-Ripoll
Apr 7, 2010·Physical Review Letters·H WangJohn M Martinis
Dec 31, 2008·Physical Review Letters·H WangJohn M Martinis
Jun 26, 2009·The Journal of Physical Chemistry. a·Amit K PaulMichael Baer

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