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25 papers · 1 filter
Disorder-induced decoupling of attracting identical fermions: transfer matrix approach
Lolita I. Knyazeva, Vladimir I. Yudson
We consider a pair of identical fermions with a short-range attractive interaction on a finite lattice cluster in the presence of strong site disorder. This toy model imitates a lo…
Many-body localization of Fock parafermions
Murod S. Bahovadinov, Wouter Buijsman, Aleksey K. Fedorov +2
We study the effects of a random magnetic field on a one-dimensional (1D) spin-1 chain with {\it correlated} nearest-neighbor interaction. We show that this spin model can be…
Disordered impenetrable two-component fermions in one dimension
D. V. Kurlov, M. S. Bahovadinov, S. I. Matveenko +4
We study the one-dimensional Hubbard model for two-component fermions with infinitely strong on-site repulsion (t-0 model) in the presence of disorder. Our analytical treatment dem…
Many-body localization transition in a frustrated XY chain
M. S. Bahovadinov, D. V. Kurlov, S. I. Matveenko +2
We demonstrate many-body localization (MBL) transition in a one-dimensional isotropic XY chain with a weak next-nearest-neighbor frustration in a random magnetic field. We perform…
Many-body localization of 1D disordered impenetrable two-component fermions
M. S. Bahovadinov, D. V. Kurlov, B. L. Altshuler +1
We study effects of disorder on eigenstates of 1D two-component fermions with infinitely strong Hubbard repulsion. We demonstrate that the spin-independent (potential) disorder red…
Sensitivity of the spectral form factor to short-range level statistics
Wouter Buijsman, Vadim Cheianov, Vladimir Gritsev
The spectral form factor is a dynamical probe for level statistics of quantum systems. The early-time behaviour is commonly interpreted as a characterization of two-point correlati…