Spin-Motion Coupling in Cold Atomic Gases pdf download

We consider a cold two-species atomic Fermi gas confined in a trap. We combine the Hainan coupling between the states (we assume them to be the states with different spins) with the Cooper pairing.  · The absence of the Galilean invariance manifest through Eq.(2) is a key feature of the atomic gas with spin-orbit coupling engineered by the Raman processes driven by external lasers. For normal atomic gases with the Galilean invariance, the momentum density g is always equal to mnv for arbitrary velocity field bltadwin.rur, this equality generally breaks down in the presence of spin-orbit Cited by: 7. Synthetic Spin Orbit Coupling In Cold Atoms. Download Synthetic Spin Orbit Coupling In Cold Atoms PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Synthetic Spin Orbit Coupling In Cold Atoms book now. This site is like a library, Use search box in the widget to get ebook that you want.

The coupling of light to atomic spins is a principal tool in quantum information processing using photons () and in precision optical spectroscopy, enabling determination of atomic structure (5, 6), time and frequency standards (), and laboratory searches of new physics ().The performance of these applications depends on the coherence time of the spins and on the efficiency with which. We realize a mechanical analogue of the Dicke model, achieved by coupling the spin of individual neutral atoms to their quantized motion in an optical trapping potential. The atomic spin states play the role of the electronic states of the atomic ensemble considered in the Dicke model, and the in-trap motional states of the atoms correspond to the states of the electromagnetic field mode. Figure 1: Scheme for generating spin-orbit coupling in a neutral, ultracold atomic gas. Two counterpropagating laser beams couple two spin states by a resonant stimulated two-photon Raman transition: an atom in a spin-up (↑) state is excited to a virtual level by absorbing a photon from the left beam, then flips to the spin-down (↓) state by emitting another photon into the right beam.

An important component of the structure of the atom, the effects of spin-orbit coupling are present in many sub-fields of physics. Most of these effects are present continuously. We present a detailed study of the dynamics of changing the spin-orbit coupling in an ultra-cold Bose gas, coupling the motion of the atoms to their spin. We find that the spin-orbit coupling greatly increases the. The current experimental and theoretical status of spin–orbit coupling in ultracold atomic systems is discussed, highlighting unique features that enable otherwise impossible physics. Quantum. Spin dynamics in the presence of spin-orbit coupling has been studied in the context of both electron gases 19 and atomic Fermi gases We focus on the dissipationless limit.