Generating entangled atom-photon pairs from bose-einstein condensates
نویسندگان
چکیده
We propose using spontaneous Raman scattering from an optically driven Bose-Einstein condensate as a source of atom-photon pairs whose internal states are maximally entangled. Generating entanglement between a particle which is easily transmitted (the photon) and one which is easily trapped and coherently manipulated (an ultracold atom) will prove useful for a variety of quantum-information related applications. We analyze the type of entangled states generated by spontaneous Raman scattering and construct a geometry which results in maximum entanglement.
منابع مشابه
Fermionic and bosonic atom correlations in molecular dissociation
Dissociation of a molecular dimer produces two quantum mechanically entangled atoms with equal and opposite momenta in the molecule’s rest frame. These atoms have Einstein-Podolsky-Rosen type correlations [1], and hence are of fundamental interest. It is possible to produce Bose-Einstein condensates (BECs) of molecules, and then to dissociate them as in Ref. [2], so that these correlations may ...
متن کاملnt - p h / 04 02 03 1 v 1 4 Fe b 20 04 Generation of atom - photon entangled states in atomic Bose - Einstein condensate via electromagnetically induced transparency
In this paper, we present a method to generate continuous-variable-type entangled states between photons and atoms in atomic Bose-Einstein condensate (BEC). The proposed method involves an atomic BEC with three internal states, a weak quantized probe laser and a strong classical coupling laser, which form a three-level Λ-shaped BEC system. We consider a situation where the BEC is in electromagn...
متن کاملQuantum correlated twin atomic beams via photodissociation of a molecular Bose-Einstein condensate
The successful production of Bose-Einstein condensates ~BEC! has led to measurements indicating that BECs have coherence properties similar to lasers. This suggests that the next stage in obtaining precision measurements in atom optics is the production of atom beams with sub-Poissonian atom statistics—as has been widely demonstrated in photonics applications. Indeed, there is already some indi...
متن کاملCollision Dynamics of Two Bose-Einstein Condensates in the Presence of Raman Coupling
A collision of two-component Bose-Einstein condensates in the presence of Raman coupling is proposed and studied by numerical simulations. Raman transitions are found to be able to reduce collision-produced irregular excitations by forming a time-averaged attractive optical potential. Raman transitions also support a kind of dark soliton pairs in two-component Bose-Einstein condensates. Soliton...
متن کاملInter-Condensate Tunneling in Bose-Einstein Condensates with Feshbach Resonances
Recently, effects of Feshbach resonances in atom-atom interactions were observed by varying the external magnetic field of an atomic Bose-Einstein condensate (BEC). We point out that the quasi-bound molecules created in the intermediate state of the resonance can form a second, molecular condensate. The many-body state of the system is then a hybrid atomic/molecular condensate with inter-conden...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Physical review letters
دوره 85 24 شماره
صفحات -
تاریخ انتشار 2000