Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2007-08-21
Phys. Rev. A 77, 015601 (2008)
Physics
Condensed Matter
Other Condensed Matter
5 pages, 2 EPS figures, RevTeX 4
Scientific paper
10.1103/PhysRevA.77.015601
We calculate the excitation modes of a 1D dipolar quantum gas confined in a harmonic trap with frequency $\omega_0$ and predict how the frequency of the breathing n=2 mode characterizes the interaction strength evolving from the Tonks-Girardeau value $\omega_2=2\omega_0$ to the quasi-ordered, super-strongly interacting value $\omega_2=\sqrt{5}\omega_0$. Our predictions are obtained within a hydrodynamic Luttinger-Liquid theory after applying the Local Density Approximation to the equation of state for the homogeneous dipolar gas, which are in turn determined from Reptation Quantum Monte Carlo simulations. They are shown to be in quite accurate agreement with the results of a sum-rule approach. These effects can be observed in current experiments, revealing the Luttinger-liquid nature of 1D dipolar Bose gases.
Chiofalo M.-L.
Citro Roberta
de Palo S.
Orignac Edmond
Pedri Paolo
No associations
LandOfFree
Collective excitations of trapped one-dimensional dipolar quantum gases 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 Collective excitations of trapped one-dimensional dipolar quantum gases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collective excitations of trapped one-dimensional dipolar quantum gases will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-366919