dc.contributor.author
Morigi, Giovanna
dc.contributor.author
Solano, Enrique
dc.contributor.author
Englert, Berthold-Georg
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Walther, Herbert
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American Physical Society
dc.identifier
https://ddd.uab.cat/record/115724
dc.identifier
urn:10.1103/PhysRevA.65.040102
dc.identifier
urn:oai:ddd.uab.cat:115724
dc.identifier
urn:recercauab:ARE-44311
dc.identifier
urn:articleid:10502947v65n4p40102-1
dc.identifier
urn:scopus_id:84862211852
dc.identifier
urn:wos_id:000174978600002
dc.description.abstract
We show that the unitary evolution of a harmonic oscillator coupled to a two-level system can be undone by a suitable manipulation of the two-level system-more specifically, by a quasi-instantaneous phase change. This enables us to isolate the dissipative evolution to which the oscillator may be exposed in addition. With this method we study the decoherence time of a photon mode in cavity QED, and that of the quantized harmonic motion of trapped ions. We comment on the relation to spin echoes and multipath interferometry.
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application/pdf
dc.relation
Physical review. A ; Vol. 65, Issue 4 (April 2002), p. 040102-1-040102-4
dc.rights
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dc.rights
https://rightsstatements.org/vocab/InC/1.0/
dc.title
Measuring irreversible dynamics of a quantum harmonic oscillator
