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quant-ph2026
Bilinear correlations in Fluctuating Gaussian States with anti-unitary symmetries
Xu Zhang
We study bilinear order-parameter correlations in a general class of sign problem-free systems that are described by what we call Fluctuating Gaussian States (FGS) with anti-unitar…
quant-ph2026
Perfect transmission of a Dirac particle in one-dimension double square barrier
Xu Zhang, Qiang Gu
Dirac particles can undergo perfect transmission through a sufficiently high potential barrier in the Klein zone. Although the perfect Klein tunneling (often referred to as the Kle…