*Speaker: *Yehuda B. Band (Ben-Gurion University)
*Date:* Thursday, Jan 10th
*Time:* 12:00-1:00 pm
Includes Pizza.
*Title: * Quantum Rotors: Magnetometers and Accelerometers
*Abstract: *In a cold atom gas subject to a spin-dependent 2D optical
lattice potential with hexagonal symmetry, trapped atoms undergo orbital
motion around the minima of the optical lattice potential. Such atoms are
elementary quantum rotors (QRs). The theory of an atomic QR is developed.
Wave functions, energies, and degeneracies are determined for both bosonic
and fermionic QRs, as well as magnetic dipole transitions between ground
and spin-excited states. QRs in optical lattices with precisely one atom
per site can be used as a magnetometer or as an accelerometer; such devices
can have unprecedented accuracy.
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