2 papers
cond-mat.stat-mech2020
Many-body level statistics of single-particle quantum chaos
Yunxiang Liao, Amit Vikram, Victor Galitski
We consider a non-interacting many-fermion system populating levels of a unitary random matrix ensemble (equivalent to the q=2 complex Sachdev-Ye-Kitaev model) - a generic model of…
gr-qc2018
Quantum Correlators in Friedmann Spacetimes -The omnipresent de Sitter and the invariant vacuum noise
Kinjalk Lochan, Karthik Rajeev, Amit Vikram +1
We discuss several aspects of quantum field theory of a scalar field in a Friedmann universe, clarifying and highlighting several conceptual and technical issues. (A) We show that…