Bloch and Josephson Oscillations in a Ring of an Ideal Bose Gas

Details Bloch and Josephson Oscillations in a Ring of an Ideal Bose Gas Bloch and Josephson Oscillations in a Ring of an Ideal Bose Gas

2010-02-05

arxiv.org/abs/1002.1283v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

17 pages, 4 figures

Scientific paper

We show that an Ideal Bose gas that is contained within a very thin ring exhibits phenomena analogous to the Bloch and Josephson oscillations of a charged Ideal Fermi gas in a thin ring. If the walls of the ring are constrained to have an angular velocity $\omega$, the angular momentum has an anomalous component that is periodic in $\omega$, with a period equal to the quantum of angular velocity $\omega_{0}\equiv \hbar /mR^{2}$. If a constant applied torque is applied to the walls, there will be component of the angular momentum of the gas that is periodic in time, with a 'Josephson frequency' given by $f_{J} =\tau/N \hbar$. Finally, we show that the oscillations are an automatic feature of the quantum regime of any ring of an ensemble of identical particles, even with particle interactions.

Affiliated with

Also associated with

No associations

Rating

Bloch and Josephson Oscillations in a Ring of an Ideal Bose Gas 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 Bloch and Josephson Oscillations in a Ring of an Ideal Bose Gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bloch and Josephson Oscillations in a Ring of an Ideal Bose Gas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-536115