Optomechanical Rydberg-Atom Excitation via Dynamic Casimir-Polder Coupling

Salvatore Spagnolo, Roberto Passante, Lucia Rizzuto, Antonio Noto, Giovanni Carugno, Antonio Noto, Mauro Antezza, Giuseppe Ruoso, Caterina Braggio

Risultato della ricerca: Article

21 Citazioni (Scopus)

Abstract

We study the optomechanical coupling of a oscillating effective mirror with a Rydberg atomic gas, mediated by the dynamical atom-mirror Casimir-Polder force. This coupling may produce a near-field resonant atomic excitation whose probability scales as $\propto (d^2 a n^4 t)^2/z_0^8$, where $z_0$ is the average atom-surface distance, $d$ the atomic dipole moment, $a$ the mirror’s effective oscillation amplitude, $n$ the initial principal quantum number, and $t$ the time. We propose an experimental configuration to realize this system with a cold atom gas trapped at a distance \sim 2 × 10 μm from a semiconductor substrate whose dielectric constant is periodically driven by an external laser pulse, hence realizing an effective mechanical mirror motion due to the periodic change of the substrate from transparent to reflecting. For a parabolic gas shape, this effect is predicted to excite about $\sim 10^2$ atoms of a dilute gas of $10^3$ trapped Rydberg atoms with $n=75$ after about 0.5 μs, which is high enough to be detected in typical Rydberg gas experimental conditions.
Lingua originaleEnglish
pagine (da-a)023601-1-023601-5
Numero di pagine5
RivistaDefault journal
Volume113
Stato di pubblicazionePublished - 2014

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mirrors
excitation
atoms
gases
atomic excitations
monatomic gases
quantum numbers
near fields
dipole moments
permittivity
oscillations
configurations
pulses
lasers

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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Optomechanical Rydberg-Atom Excitation via Dynamic Casimir-Polder Coupling. / Spagnolo, Salvatore; Passante, Roberto; Rizzuto, Lucia; Noto, Antonio; Carugno, Giovanni; Noto, Antonio; Antezza, Mauro; Ruoso, Giuseppe; Braggio, Caterina.

In: Default journal, Vol. 113, 2014, pag. 023601-1-023601-5.

Risultato della ricerca: Article

Spagnolo, S, Passante, R, Rizzuto, L, Noto, A, Carugno, G, Noto, A, Antezza, M, Ruoso, G & Braggio, C 2014, 'Optomechanical Rydberg-Atom Excitation via Dynamic Casimir-Polder Coupling', Default journal, vol. 113, pagg. 023601-1-023601-5.
Spagnolo, Salvatore ; Passante, Roberto ; Rizzuto, Lucia ; Noto, Antonio ; Carugno, Giovanni ; Noto, Antonio ; Antezza, Mauro ; Ruoso, Giuseppe ; Braggio, Caterina. / Optomechanical Rydberg-Atom Excitation via Dynamic Casimir-Polder Coupling. In: Default journal. 2014 ; Vol. 113. pagg. 023601-1-023601-5.
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T1 - Optomechanical Rydberg-Atom Excitation via Dynamic Casimir-Polder Coupling

AU - Spagnolo, Salvatore

AU - Passante, Roberto

AU - Rizzuto, Lucia

AU - Noto, Antonio

AU - Carugno, Giovanni

AU - Noto, Antonio

AU - Antezza, Mauro

AU - Ruoso, Giuseppe

AU - Braggio, Caterina

PY - 2014

Y1 - 2014

N2 - We study the optomechanical coupling of a oscillating effective mirror with a Rydberg atomic gas, mediated by the dynamical atom-mirror Casimir-Polder force. This coupling may produce a near-field resonant atomic excitation whose probability scales as $\propto (d^2 a n^4 t)^2/z_0^8$, where $z_0$ is the average atom-surface distance, $d$ the atomic dipole moment, $a$ the mirror’s effective oscillation amplitude, $n$ the initial principal quantum number, and $t$ the time. We propose an experimental configuration to realize this system with a cold atom gas trapped at a distance \sim 2 × 10 μm from a semiconductor substrate whose dielectric constant is periodically driven by an external laser pulse, hence realizing an effective mechanical mirror motion due to the periodic change of the substrate from transparent to reflecting. For a parabolic gas shape, this effect is predicted to excite about $\sim 10^2$ atoms of a dilute gas of $10^3$ trapped Rydberg atoms with $n=75$ after about 0.5 μs, which is high enough to be detected in typical Rydberg gas experimental conditions.

AB - We study the optomechanical coupling of a oscillating effective mirror with a Rydberg atomic gas, mediated by the dynamical atom-mirror Casimir-Polder force. This coupling may produce a near-field resonant atomic excitation whose probability scales as $\propto (d^2 a n^4 t)^2/z_0^8$, where $z_0$ is the average atom-surface distance, $d$ the atomic dipole moment, $a$ the mirror’s effective oscillation amplitude, $n$ the initial principal quantum number, and $t$ the time. We propose an experimental configuration to realize this system with a cold atom gas trapped at a distance \sim 2 × 10 μm from a semiconductor substrate whose dielectric constant is periodically driven by an external laser pulse, hence realizing an effective mechanical mirror motion due to the periodic change of the substrate from transparent to reflecting. For a parabolic gas shape, this effect is predicted to excite about $\sim 10^2$ atoms of a dilute gas of $10^3$ trapped Rydberg atoms with $n=75$ after about 0.5 μs, which is high enough to be detected in typical Rydberg gas experimental conditions.

UR - http://hdl.handle.net/10447/95356

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