Generating "squeezed" superpositions of coherent states using photon addition and subtraction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F08%3A00005586" target="_blank" >RIV/61989592:15310/08:00005586 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Generating "squeezed" superpositions of coherent states using photon addition and subtraction

Popis výsledku v původním jazyce

We study how photon addition and subtraction can be used to generate squeezed superpositions of coherent states (SSCSs) in free-traveling fields with high fidelities and large amplitudes. It is shown that an arbitrary N-photon subtraction results in thegeneration of a SSCS with nearly the perfect fidelity (F}0.999) regardless of the number of photons subtracted. In this case, the amplitude of the SSCS increases as the number of the subtracted photons gets larger. For example, two-photon subtraction from a squeezed vacuum state of 6.1 dB can generate a SSCS with amplitude of 1.26, while in the case of the four-photon subtraction a SSCS with a larger amplitude of 1.65 is obtained under the same condition. When a photon is subtracted from a squeezed vacuum state and another photon is added subsequently, a SSCS with a lower fidelity (F}0.96) yet higher amplitude of approximately 2 can be generated.

Název v anglickém jazyce

Generating "squeezed" superpositions of coherent states using photon addition and subtraction

Popis výsledku anglicky

We study how photon addition and subtraction can be used to generate squeezed superpositions of coherent states (SSCSs) in free-traveling fields with high fidelities and large amplitudes. It is shown that an arbitrary N-photon subtraction results in thegeneration of a SSCS with nearly the perfect fidelity (F}0.999) regardless of the number of photons subtracted. In this case, the amplitude of the SSCS increases as the number of the subtracted photons gets larger. For example, two-photon subtraction from a squeezed vacuum state of 6.1 dB can generate a SSCS with amplitude of 1.26, while in the case of the four-photon subtraction a SSCS with a larger amplitude of 1.65 is obtained under the same condition. When a photon is subtracted from a squeezed vacuum state and another photon is added subsequently, a SSCS with a lower fidelity (F}0.96) yet higher amplitude of approximately 2 can be generated.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

<a href="/cs/project/LC06007" target="_blank" >LC06007: Centrum moderní optiky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review A

ISSN

1050-2947

e-ISSN

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Svazek periodika

78

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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