Modulation spectroscopy with ultracold fermions in an optical lattice

Details Modulation spectroscopy with ultracold fermions in an optical lattice Modulation spectroscopy with ultracold fermions in an optical lattice

2006-08-03

arxiv.org/abs/cond-mat/0608091v1

Phys. Rev. A 74, 041604(R) (2006)

Physics

Condensed Matter

Superconductivity

Scientific paper

10.1103/PhysRevA.74.041604

We propose an experimental setup of ultracold fermions in an optical lattice to determine the pairing gap in a superfluid state and the spin ordering in a Mott-insulating state. The idea is to apply a periodic modulation of the lattice potential and to use the thereby induced double occupancy to probe the system. We show by full time-dependent calculation using the adaptive time dependent density-matrix renormalization group method that the position of the peak in the spectrum of the induced double occupancy gives the pairing energy in a superfluid and the interaction energy in a Mott-insulator, respectively. In the Mott-insulator we relate the spectral weight of the peak to the spin ordering at finite temperature using perturbative calculations.

Affiliated with

Also associated with

No associations

Rating

Modulation spectroscopy with ultracold fermions in an optical lattice 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 Modulation spectroscopy with ultracold fermions in an optical lattice, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modulation spectroscopy with ultracold fermions in an optical lattice will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-50241