On stability of odd-frequency superconducting state

Physics – Condensed Matter – Superconductivity

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4 pages, no figures

Scientific paper

10.1103/PhysRevB.79.132502

Odd-frequency pairing mechanism of superconductivity has been investigated for several decades. Nevertheless, its properties, including the thermodynamic stability, have remained unclear. In particular, it has been argued that the odd-frequency state is thermodynamically unstable, has an unphysical (anti-) Meissner effect, and thus can not exist as a homogeneous equilibrium phase. We argue that this conclusion is incorrect because it implicitly relies on the inappropriate assumption that the odd-frequency superconductor can be described by an effective Hamiltonian that breaks the particle conservation symmetry. We demonstrate that the odd-frequency state can be properly described within the functional integral approach using non-local-in-time effective action. Within the saddle point approximation, we find that this phase is thermodynamically stable, exhibits ordinary Meissner effect, and therefore can be realized as an equilibrium homogenous state of matter.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

On stability of odd-frequency superconducting state 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 On stability of odd-frequency superconducting state, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On stability of odd-frequency superconducting state will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-364936

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.