Spin relaxation in an ultracold spin-orbit-coupled40K gas

@article{Yu2013SpinRI,
  title={Spin relaxation in an ultracold spin-orbit-coupled40K gas},
  author={T Yu and M. W. Wu},
  journal={Physical Review A},
  year={2013},
  volume={88}
}
  • T. Yu, M. W. Wu
  • Published 3 September 2013
  • Physics
  • Physical Review A
We report the anomalous Dyakonov-Perel' spin relaxation in ultracold spin-orbit coupled $^{40}$K gas when the coupling between $|9/2,9/2\ >$ and $|9/2,7/2\ >$ states (atcing as the effective Zeeman magnetic field) is much stronger than the spin-orbit coupled field. Both the transverse and longitudinal spin relaxations are investigated with small and large spin polarizations. It is found that with small spin polarization, the transverse (longitudinal) spin relaxation is divided into four (two… 
4 Citations

Figures from this paper

Quantum Spin Dynamics in a Normal Bose Gas with Spin-Orbit Coupling.
TLDR
In this Letter, spin dynamics of a two-component Bose gas with spin-orbit coupling realized in cold atom experiments is investigated and coupled hydrodynamic equations for number and spin densities as well as their associated currents are derived.
Degenerate quantum gases with spin-orbit coupling: a review.
  • H. Zhai
  • Physics, Chemistry
    Reports on progress in physics. Physical Society
  • 2015
TLDR
It is shown that investigating SO coupling in cold atom systems can enrich the understanding of basic phenomena such as superfluidity, provide a good platform for simulating condensed matter states such as topological superfluids and result in novel quantum systems such as SO coupled unitary Fermi gas and high spin quantum gases.
Inverse engineering for fast transport and spin control of spin-orbit-coupled Bose-Einstein condensates in moving harmonic traps
We investigate fast transport and spin manipulation of tunable spin-orbit-coupled Bose-Einstein condensates in a moving harmonic trap. Motivated by the concept of "shortcuts to adiabaticity", we
von Neumann spin measurements with Rashba fields
We show that dynamics in the spin–orbit coupling field simulate the von Neumann measurement of a particle spin. We demonstrate how the measurement influences the spin and coordinate evolution of a

References

SHOWING 1-10 OF 40 REFERENCES
Anomalous D'yakonov-Perel' spin relaxation in semiconductor quantum wells under a strong magnetic field in the Voigt configuration
We report an anomalous scaling of the D'yakonov-Perel' spin relaxation with the momentum relaxation in semiconductor quantum wells under a strong magnetic field in the Voigt configuration. We focus
Spin Dynamics in High-Mobility Two-Dimensional Electron Systems
Understanding the spin dynamics in semiconductor heterostructures ishighly important for future semiconductor spintronic devices. In high-mobility two-dimensional electron systems (2DES), the spin
Spin-orbit coupled Bose-Einstein condensates
We consider a many-body system of pseudo-spin-1 /2 bosons with spin-orbit interactions, which couple the momentum and the internal pseudo-spin degree of freedom created by spatially varying laser
Spin-injection spectroscopy of a spin-orbit coupled Fermi gas.
TLDR
The coupling of the spin of electrons to their motional state lies at the heart of recently discovered topological phases of matter and the spin-orbit gap is revealed via spin-injection spectroscopy, which characterizes the energy-momentum dispersion and spin composition of the quantum states.
Collective dipole oscillations of a spin-orbit coupled Bose-Einstein condensate.
TLDR
An experimental study of the collective dipole oscillation of a spin-orbit coupled Bose-Einstein condensate in a harmonic trap and experimentally demonstrates a unique feature of the spin- orbit coupled system predicted by a sum-rule approach, stating that spin polarization susceptibility can be measured via the dynamics of dipoles oscillation.
Spin–orbit-coupled Bose–Einstein condensates
TLDR
The engineered SO coupling in a neutral atomic Bose–Einstein condensate sets the stage for the realization of topological insulators in fermionic neutral atom systems and develops a many-body theory that provides quantitative agreement with the observed location of the transition.
Observation of Zitterbewegung in a spin-orbit-coupled Bose-Einstein condensate
Spin-orbit coupled ultra-cold atoms provide an intriguing new avenue for the study of rich spin dynamics in superfluids. In this Letter, we observe Zitterbewegung, the simultaneous velocity (thus
Spin-orbit coupled spinor Bose-Einstein condensates.
TLDR
This Letter studies spin-1/2 andspin-1 Bose-Einstein condensates with Rashba spin-orbit coupling, and finds that the condensate wave function will develop nontrivial structures.
Kinetics of spin coherence of electrons in an undoped semiconductor quantum well
We study the kinetics of spin coherence of optically excited electrons in an undoped insulating ZnSe/Zn$_{1-x}$Cd$_x$Se quantum well under moderate magnetic fields in the Voigt configuration. After
Bose-Einstein condensates with spin-orbit interaction.
TLDR
In the spin-orbit regime, it is shown that a Bose gas is a spinor condensate made up of two non-orthogonal dressed spin states carrying different momenta, which shows a stripe structure with a contrast proportional to the overlap of the dressed states, which can be made very pronounced by adjusting the experimental parameters.
...
1
2
3
4
...