About: Spin squeezing and Schrodinger-cat-state generation in atomic samples with Rydberg blockade

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About: Spin squeezing and Schrodinger-cat-state generation in atomic samples with Rydberg blockade Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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. (en)
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 (en)
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 (en)
skos:notation	RIV/61989592:15310/12:33140154!RIV13-GA0-15310___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP205/10/1657)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Opatrný, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	170436
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/12:33140154
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	limit; ensemble; light; entanglement; quantum; Jaynes-Cummings model (en)
http://linked.open.../riv/klicoveSlovo	ensemble entanglement limit quantum Jaynes-Cummings model light
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[ED393E54712D]
http://linked.open...i/riv/nazevZdroje	Physical Review A
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Quantum pumping of ultracold atoms and applications in Quantum Information
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	86
http://linked.open...iv/tvurceVysledku	Opatrný, Tomáš Molmer, Klaus
http://linked.open...ain/vavai/riv/wos	000307980400012
issn	1050-2947
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevA.86.023845
http://localhost/t...ganizacniJednotka	15310

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