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Entanglement trapping in a nonstationary structured reservoir
Tekijät: Lazarou C, Luoma K, Maniscalco S, Piilo J, Garraway BM
Kustantaja: AMER PHYSICAL SOC
Julkaisuvuosi: 2012
Journal: Physical Review A
Tietokannassa oleva lehden nimi: PHYSICAL REVIEW A
Lehden akronyymi: PHYS REV A
Artikkelin numero: ARTN 012331
Numero sarjassa: 1
Vuosikerta: 86
Numero: 1
Sivujen määrä: 9
ISSN: 1050-2947
DOI: https://doi.org/10.1103/PhysRevA.86.012331
Rinnakkaistallenteen osoite: https://arxiv.org/abs/1205.5401
Tiivistelmä
We study a single two-level atom interacting with a reservoir of modes defined by a reservoir structure function with a frequency gap. Using the pseudomodes technique, we derive the main features of a trapping state formed in the weak coupling regime. Utilizing different entanglement measures we show that strong correlations and entanglement between the atom and the modes are in existence when this state is formed. Furthermore, an unexpected feature for the reservoir is revealed. In the long time limit and for weak coupling the reservoir spectrum is not constant in time.
We study a single two-level atom interacting with a reservoir of modes defined by a reservoir structure function with a frequency gap. Using the pseudomodes technique, we derive the main features of a trapping state formed in the weak coupling regime. Utilizing different entanglement measures we show that strong correlations and entanglement between the atom and the modes are in existence when this state is formed. Furthermore, an unexpected feature for the reservoir is revealed. In the long time limit and for weak coupling the reservoir spectrum is not constant in time.
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