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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F12%3A33140154%21RIV13-GA0-15310___
rdf:type
n6:Vysledek skos:Concept
dcterms:description
A scheme is proposed to prepare squeezed states and Schrodinger-cat-like states of the collective spin degrees of freedom associated with a pair of ground states in an atomic ensemble. The scheme uses an effective Jaynes-Cummings interaction which can be provided by excitation of the atoms to Rydberg states and an effective J(x) interaction implemented by a resonant Raman coupling between the atomic ground states. Dynamical evolution both with a constant Hamiltonian and with adiabatic variation of the two interaction terms is studied. We show that by the application of further resonant laser fields, we can suppress nonadiabatic transfer under the time-varying Hamiltonian and significantly speed up the evolution towards a maximally squeezed, J(z) = 0, collective spin state. A scheme is proposed to prepare squeezed states and Schrodinger-cat-like states of the collective spin degrees of freedom associated with a pair of ground states in an atomic ensemble. The scheme uses an effective Jaynes-Cummings interaction which can be provided by excitation of the atoms to Rydberg states and an effective J(x) interaction implemented by a resonant Raman coupling between the atomic ground states. Dynamical evolution both with a constant Hamiltonian and with adiabatic variation of the two interaction terms is studied. We show that by the application of further resonant laser fields, we can suppress nonadiabatic transfer under the time-varying Hamiltonian and significantly speed up the evolution towards a maximally squeezed, J(z) = 0, collective spin state.
dcterms:title
Spin squeezing and Schrodinger-cat-state generation in atomic samples with Rydberg blockade Spin squeezing and Schrodinger-cat-state generation in atomic samples with Rydberg blockade
skos:prefLabel
Spin squeezing and Schrodinger-cat-state generation in atomic samples with Rydberg blockade Spin squeezing and Schrodinger-cat-state generation in atomic samples with Rydberg blockade
skos:notation
RIV/61989592:15310/12:33140154!RIV13-GA0-15310___
n6:predkladatel
n7:orjk%3A15310
n3:aktivita
n11:P
n3:aktivity
P(GAP205/10/1657)
n3:cisloPeriodika
2
n3:dodaniDat
n4:2013
n3:domaciTvurceVysledku
n17:9587438
n3:druhVysledku
n8:J
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
170436
n3:idVysledku
RIV/61989592:15310/12:33140154
n3:jazykVysledku
n14:eng
n3:klicovaSlova
limit; ensemble; light; entanglement; quantum; Jaynes-Cummings model
n3:klicoveSlovo
n5:Jaynes-Cummings%20model n5:limit n5:quantum n5:ensemble n5:entanglement n5:light
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[ED393E54712D]
n3:nazevZdroje
Physical Review A
n3:obor
n19:BH
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:projekt
n18:GAP205%2F10%2F1657
n3:rokUplatneniVysledku
n4:2012
n3:svazekPeriodika
86
n3:tvurceVysledku
Molmer, Klaus Opatrný, Tomáš
n3:wos
000307980400012
s:issn
1050-2947
s:numberOfPages
11
n10:doi
10.1103/PhysRevA.86.023845
n16:organizacniJednotka
15310