Momentum-Space Path Integral Approach to Non-Hermitian Symmetry Breaking
Zhuo-Ting Cai, Wei Chen · 2026
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Description
Zhuo-Ting Cai and Wei Chen wrote a 2026 physics paper on symmetry breaking in non-Hermitian systems, viewed in momentum space. A recent link between quantum and classical views of this breaking was built with path integrals in position space. That view reads spectral shifts at the level of single states.
The authors build the dual form in momentum space, with its own trace formula and quantization rule. As in the position view, whether a state energy is real or complex turns on the symmetry of its orbit. The orbit shape decides which form of the rule to use, and loop orbits that wind need a boundary fix. A test case treats Bloch oscillations in a finite lattice with such winding orbits.
Catalog record
| CREATOR | Zhuo-Ting Cai, Wei Chen |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 27 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |