Description
In this talk I will first give an overview of the field
spinor condensates, explaining how they exhibit many
phenomena not found in scalar condensates. I will then
discuss dynamics in spin-one 23Na and 87Rb condensates,
addressing recent experiments at NIST and Berkeley
respectively. For the antiferromagnetic 23Na system, we
consider tight traps so that the dynamics occur only in the
spin degrees of freedom. I will describe an exact mapping
of the system onto a quantum rotor model, and show how this
sheds light on its dynamics. I will also describe how this
system is a natural candidate to observe collapse and
revival phenomena. I will then move on to discuss
ferromagnetic condensates in larger traps. For this, we
applied the truncated Wigner approximation to the spinor
system with all spatial and spin degrees of freedom. We
will use this as a tool to address the possibility of
thermalization at long times.
Primary author
Dr
Ryan Barnett
(Joint Quantum Institute)
