Slow light in a cavity optomechanical system with a Bose-Einstein condensate

Chen, Bin; Jiang, Cheng; Zhu, Ka-Di

doi:10.1103/physreva.83.055803

Cited by 92 publications

(44 citation statements)

References 29 publications

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“…From (27), we observe that there are two classes of solutions depending on whether S y = 0 or S z = − 0 /2␥ 1 . S y = 0 is the usual super-radiant phase in the Dicke model.…”

Section: Mean Field Solutionsmentioning

confidence: 98%

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Phonon laser effect and Dicke–Hepp–Lieb superradiant phase transition in magnetic cantilever coupled to a Bose–Einstein condensate

Bhattacherjee

Brandes

2013

Can. J. Phys.

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We propose the possibility of a phonon laser by coupling a Bose-Einstein condensate to a nanomechanical cantilever with a magnetic tip. Due to the magnetic coupling, atomic spin flips induce cantilever motion, which can be used to produce a phonon laser. The system is described by the equivalent of the Jaynes-Cummings Hamiltonian. By controlling the number of atoms and the population inversion, one can obtain either a continuous wave or transient lasing. The two-body atom-atom interaction is also shown to coherently manipulate the lasing process. We also show that in the strong coupling limit, the same system can undergo a Dicke-Hepp-Lieb superradiant phase transition. Exotic phase diagrams can be obtained by tuning the two body atom-atom interaction. PACS Nos.: 03.75.Nt, 85.85.+j, 42.50.Pq, 37.90.+j. Résumé :Nous suggérons qu'il est possible de construire un saser (laser sonore) en couplant un condensat de Bose-Einstein à un cantilever nano-mécanique avec une pointe magnétique. À cause du couplage magnétique, le renversement de spin (spin flip) atomique induit un mouvement dans le cantilever qui peut être utilisée pour générer un saser. Le système est décrit par l'équivalent du Hamiltonien de Jaymes-Cummings. En contrôlant le nombre d'atomes et l'inversion de population, nous pouvons obtenir une émission cohérente (lasing), en onde soit continue, soit transitoire. Nous montrons que l'interaction à deux corps atome-atome contrôle aussi l'émission cohérente. Nous démontrons également que dans la limite du couplage fort, le même système peut subir une transition de phase superradiante de Dicke-Hepp-Lieb. Des diagrammes de phase exotiques peuvent être obtenus par syntonisation de l'interaction à deux corps atome-atome. [Traduit par la Rédaction]

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“…From (27), we observe that there are two classes of solutions depending on whether S y = 0 or S z = − 0 /2␥ 1 . S y = 0 is the usual super-radiant phase in the Dicke model.…”

Section: Mean Field Solutionsmentioning

confidence: 98%

“…Recently the field of cavity optomechanics has become an attractive research topic with Bose-Einstein condensate (BEC) [20][21][22][23][24][25][26][27][28][29][30][31] and atomic ensembles [32][33][34][35][36][37]. A cavity optomechanical system generally consists of an optical cavity with one movable end mirror.…”

Section: Introductionmentioning

confidence: 99%

Phonon laser effect and Dicke–Hepp–Lieb superradiant phase transition in magnetic cantilever coupled to a Bose–Einstein condensate

Bhattacherjee

Brandes

2013

Can. J. Phys.

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“…The optical cross-Kerr nonlinear response in a BEC has been investigated and has been proposed as a scheme for all-optical Kerr switch based on the coupled BEC cavity system [17]. Moreover, it was shown that slow light can easily be realized in this system [18]. Also, the bistable behavior of the photon number in an optical cavity, filled with a BEC, has been reported [19].…”

Section: Introductionmentioning

confidence: 99%

“…According to the equation (18), the first term represents the linear probe response (figure 2-b) while the second term, corresponding to E pr E 2 pu , explains the cross-Kerr nonlinearity ( figure 2-c). Using the input-output relations, [16,26] …”

Section: Model and Equationsmentioning

confidence: 99%

Gain-assisted superluminal light propagation through a Bose-Einstein condensate cavity system

2016

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The propagation of a probe laser field in a cavity optomechanical system with a Bose-Einstein condensate is studied. The transmission properties of the system are investigated and it is shown that the group velocity of the probe pulse field can be controlled by Rabi frequency of the pump laser field. The effect of the decay rate of the cavity photons on the group velocity is studied and it is demonstrated that for small values of the decay rates, the light propagation switches from subluminal to superluminal just by changing the Rabi frequency of the pump field. Then, the gain-assisted superluminal light propagation due to the cross-Kerr nonlinearity is established in cavity optomechanical system with a Bose-Einstein condensate. Such behavior can not appear in the pump-probe two-level atomic systems in the normal phase. We also find that the amplification is achieved without inversion in the population of the quantum energy levels.

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“…Most recently, this optical pump-probe scheme has also been realized experimentally in cavity optomechanical systems [22][23][24]. Several phenomena have been demonstrated in different kinds of optomechanical systems based on the optical pump-probe technology such as optomechanically induced transparency [25], the large change in light velocity [26], optically-tunable delay [27], and light storage [28]. The mechanism underlying these effects can be explained as the four-wave mixing (FWM) process.…”

Section: Introductionmentioning

confidence: 99%

Cavity optomechanical spectroscopy constraints chameleon dark energy scenarios

Liu

Zhu

2018

Eur. Phys. J. C

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The chameleon scalar field is a matter-coupled dark energy candidate with the screening mechanisms. In the present paper,we propose a quantum cavity optomechanical scheme to detect the possible signature of chameleons via the optical pump-probe spectroscopy. Compare to the previous experiment the sensitivity can be improved by the using of electrostatic shield and a pump-probe scheme to read the weak frequency splitting. We expect that this work will be a useful addition to the current literature on proposals to detect effects of dark energy.

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Slow light in a cavity optomechanical system with a Bose-Einstein condensate

Cited by 92 publications

References 29 publications

Phonon laser effect and Dicke–Hepp–Lieb superradiant phase transition in magnetic cantilever coupled to a Bose–Einstein condensate

Phonon laser effect and Dicke–Hepp–Lieb superradiant phase transition in magnetic cantilever coupled to a Bose–Einstein condensate

Gain-assisted superluminal light propagation through a Bose-Einstein condensate cavity system

Cavity optomechanical spectroscopy constraints chameleon dark energy scenarios

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