Physics – Chemical Physics
Scientific paper
2010-07-02
New J. Phys. 12, 103007 (2010)
Physics
Chemical Physics
Scientific paper
10.1088/1367-2630/12/10/103007
We show that an ensemble of $^2\Sigma$ molecules in the rotationally ground state trapped on an optical lattice exhibits collective spin excitations that can be controlled by applying superimposed electric and magnetic fields. In particular, we show that the lowest energy excitation of the molecular ensemble at certain combinations of electric and magnetic fields leads to the formation of a magnetic Frenkel exciton. The exciton bandwidth can be tuned by varying the electric or magnetic fields. We show that the exciton states can be localized by creating vacancies in the optical lattice. The localization patterns of the magnetic exciton states are sensitive to the number and distribution of vacancies, which can be exploited for engineering many-body entangled spin states. We consider the dynamics of magnetic exciton wavepackets and show that the spin excitation transfer between molecules in an optical lattice can be accelerated or slowed down by tuning an external magnetic or electric field.
Herrera Felipe
Krems Roman V.
Pérez-Ríos Jesús
No associations
LandOfFree
External field control of collective spin excitations in an optical lattice of $^2Σ$ molecules does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with External field control of collective spin excitations in an optical lattice of $^2Σ$ molecules, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and External field control of collective spin excitations in an optical lattice of $^2Σ$ molecules will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-402319