Quantum Noise in the Collective Abstraction Reaction<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>A</mml:mi><mml:mo>+</mml:mo><mml:msub><mml:mi>B</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mo>→</mml:mo><mml:mi>A</mml:mi><mml:mi>B</mml:mi><mml:mo>+</mml:mo><mml:mi>B</mml:mi></mml:math>

Jing, Hui; Cheng, Jing; Meystre, Pierre

doi:10.1103/physrevlett.101.073603

Cited by 9 publications

(11 citation statements)

References 39 publications

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“…Figure 9(b) shows the conversion rate as the function of δ for various ratios of the initial particle numbers, i.e., N a , N b , N c = 1 : 1 : 1, 1 : 2 : 1, or 2 : 1 : 2, respectively, illustrating the significant effect of any initial population imbalance. We conclude the single-path part by pointing out that similar results can be found for the other paths AC and BC, with the same CPT state and the same two-photon resonance condition [107,108].…”

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confidence: 72%

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Quantum superchemistry of de Broglie waves: New wonderland at ultracold temperature

2010

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The experimental realization of atomic Bose-Einstein condensation at ultracold temperature has led to rapid advances in creating and manipulating cold molecules, and which has given birth to a new research field of quantum matter-wave superchemistry. Contrary to the classical Arrhenius law, the tunnelingdominated ultracold reactions can be realized through the highly-controlled magneto-optical technique. Novel quantum effects have been identified in these cold reactions, such as the super-selectivity rule in dissociating triatomic molecules, and the quantum size (vessel-shape) effect. In this review, we focus on a variety of new achievements in this fascinating matter-wave wonderland, including the quantum finitenumber effect and double-slit interference in assembling cold molecules, the quantum noise in triggering collective abstraction reaction, and the magnetic phase transition in a laser-catalyzed quantum spin-mixing gas. The practical applications of matter-wave superchemistry are also introduced, such as the optical information storage via quantum photo-association, and the laser-enhanced creation of spinor or even chiral molecules.

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Section: Figsupporting

confidence: 72%

“…In Section 4, we will introduce coherent abstraction reaction or bimolecular reactive scattering A + B 2 → AB + B [107,108], where A, B, B 2 , and AB denote either bosonic or fermionic atoms or dimers. This reaction is an important benchmark system in chemical physics.…”

Section: Introductionmentioning

confidence: 99%

Quantum superchemistry of de Broglie waves: New wonderland at ultracold temperature

2010

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“…The FR occurs when the energy of the atomic scattering state is tuned into degeneracy with that of a bound molecular state. Our scheme here is actually a generalization of previously proposed scheme to create macroscopic atom-molecule entanglement based on homonuclear dimers formation [22][23][24]39]. The new feature here, however, is the role of initial populations imbalance of the two-species atoms on the mutual coherence of the closed-channel atoms and heteronuclear molecules.…”

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confidence: 96%

“…In the similar way, our model also can include a linear quasi-bond-bond coupling by introducing another dumping light [22,23]. We note that the well-known coherent two-color PA Hamiltonian [44][45][46][47][48] can be viewed as just a specific case (G = 0) of our model here.…”

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confidence: 97%

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Creating Atom-Molecule Entanglement from a Two-Species Atomic Bose Condensate

2008

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In this paper, we propose a feasible scheme to create macroscopic atom-molecule entanglement from a two-species atomic Bose-Einstein condensate, focusing on the role of the initial populations imbalance of the two species. We find that, by tuning the value of and/or the initial quantum statistics of the atoms, the atom-heteronuclear molecule entanglement can be indeed realized.Keywords Bose-Einstein condensate · Quantum entanglement · Matter wave Since the realization of Bose-Einstein condensates (BEC) in dilute atomic gases [1-3], there are many interests in the generation of coherent matter waves [4-9] and their various novel applications [10,11]. One of such ongoing efforts is the creation of an atom laser for the purpose of high-precision matter-wave interferometry. Due to their much smaller wavelength, the use of the atom laser can lead to a substantial increase of interferometer sensitivities as compared to their optical counterparts. Recently, Haine and Hope proposed a method to create even a squeezed atom laser by using a squeezed light to out-couple atoms from a trapped condensate, and thus the quantum noise in one field quadrature can be further reduced at the cost of increased noise in another quadrature [12]. Subsequently, Haine and his co-workers proposed another feasible scheme to produce the controllable atom-light entanglement still by using a squeezed input light [13]. The basic mechanism of these works is the quantum transfer from the input nonclassical light to the output atoms or atom-photon pairs. In fact, the creation of an entangled atom-photon or atom-atom pairs and their potential applications in current quantum information science have been studied extensively [14][15][16], such as the works based on molecular down-conversion [17], spin-exchange collisions [18,19], or the versatile technique of quantum transfer [13]. Therefore a natural question arise: can these

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