Dual chiral density wave induced oscillating Casimir effect
Abstract
The Casimir effect is known to be induced from photon fields confined by a small volume, and also its fermionic counterpart has been predicted in a wide range of quantum systems. Here, we investigate what types of Casimir effects can occur from quark fields in dense and thin quark matter. In particular, in the dual chiral density wave, which is a possible ground state of dense quark matter, we find that the Casimir energy oscillates as a function of the thickness of matter. This oscillating Casimir effect is regarded as an analog of that in Weyl semimetals and is attributed to the Weyl points in the momentum space of quark fields. In addition, we show that an oscillation is also induced from the quark Fermi sea, and the total Casimir energy is composed of multiple oscillations.
 Publication:

arXiv eprints
 Pub Date:
 February 2024
 DOI:
 10.48550/arXiv.2402.17638
 arXiv:
 arXiv:2402.17638
 Bibcode:
 2024arXiv240217638F
 Keywords:

 High Energy Physics  Phenomenology;
 Condensed Matter  Mesoscale and Nanoscale Physics;
 High Energy Physics  Lattice;
 Nuclear Theory;
 Quantum Physics
 EPrint:
 13 pages, 11 figures