The spectral form factor (SFF), characterizing statistics of energy eigenvalues, is a key
diagnostic of many-body quantum chaos. In addition, partial spectral form factors (PSFFs) …

We consider a noninteracting many-fermion system populating levels of a unitary random
matrix ensemble (equivalent to the q= 2 complex Sachdev-Ye-Kitaev model)—a generic …

We explore universality and phases of matter in hybrid quantum dynamics combining
chaotic time evolution and projective measurements. We develop a unitary representation of …

Strongly disordered systems in the many-body localized (MBL) phase can exhibit ground
state order in highly excited eigenstates. The interplay between localization, symmetry, and …

Signatures of dynamical quantum phase transitions and chaos can be found in the time
evolution of generalized partition functions such as spectral form factors (SFF) and …

In the study of quantum chaos diagnostics, considerable attention has been attributed to the
Krylov complexity and spectrum form factor (SFF) for systems at infinite temperature. These …

By setting the inverse temperature β loose to occupy the complex plane, Fisher showed that
the zeros of the complex partition function Z, if approaching the real β axis, reveal a …

The dissipative spectral form factor (DSFF) has recently emerged as a diagnostic tool for
assessing non-integrability or chaos in non-Hermitian systems. It extends the concept of the …

The spectral form factor (SFF) plays a crucial role in revealing the statistical properties of
energy-level distributions in complex systems. It is one of the tools to diagnose quantum …

The Sachdev-Ye-Kitaev (SYK) model is a cornerstone in the study of quantum chaos and
holographic quantum matter. Real-world implementations, however, deviate from the …