activity
19982026
most citedAdiabatic Theorem without a Gap Condition

207 citations · 827 across the 40 of their papers we have counts for

collaborators

42 papers

math-ph2026

Many-body localization for the random XXZ spin chain in fixed energy intervals

Alexander Elgart, Abel Klein

It is shown that the infinite random Heisenberg XXZ spin- chain exhibits slow propagation of information (logarithmic light cone), a key signature of many-body localizatio…

math-ph2025

Localization phenomena in the random XXZ spin chain

Alexander Elgart, Abel Klein

It is shown that the infinite random Heisenberg XXZ spin- chain exhibits localization phenomena, such as spectral, eigenstate, and weak dynamical localization, in an arbit…

math-ph2023★ 8 cited

Slow propagation of information on the random XXZ quantum spin chain

Alexander Elgart, Abel Klein

The random XXZ quantum spin chain manifests localization (in the form of quasi-locality) in any fixed energy interval, as previously proved by the authors. In this article it is sh…

math-ph2022★ 3 cited

Localization in the random XXZ quantum spin chain

Alexander Elgart, Abel Klein

We study the many-body localization (MBL) properties of the Heisenberg XXZ spin- chain in a random magnetic field. We prove that the system exhibits localization in any gi…

math-ph2021

On Kitaev's determinant formula

Alexander Elgart, Martin Fraas

We establish a sufficient condition under which for a pair of bounded, invertible operators on a Hilbert space.

math-ph2019★ 3 cited

Eigensystem multiscale analysis for the Anderson model via the Wegner estimate

Alexander Elgart, Abel Klein

We present a new approach to the eigensystem multiscale analysis (EMSA) for random Schrödinger operators that relies on the Wegner estimate. The EMSA treats all energies of the fin…