9 papers
Hot band sound
Vir B. Bulchandani, David A. Huse
Chaotic lattice models at high temperature are generically expected to exhibit diffusive transport of all local conserved charges. Such diffusive transport is usually associated wi…
Scalable tests of quantum contextuality from stabilizer-testing nonlocal games
Wanbing Zhao, H. W. Shawn Liew, Wen Wei Ho +2
Soon after the dawn of quantum error correction, DiVincenzo and Peres observed that stabilizer codewords could give rise to simple proofs of quantumness via contextuality. This dis…
A theory of quasiballistic spin transport
Jeffrey Z. Song, Hyunsoo Ha, Wen Wei Ho +1
A recent work [Mierzejewski et al., Phys. Rev. B 107, 045134 (2023)] observed "quasiballistic spin transport" - long-lived and transiently ballistic modes of the magnetization dens…
Asymmetric decay of quantum many-body scars in XYZ quantum spin chains
Dhiman Bhowmick, Vir B. Bulchandani, Wen Wei Ho
Quantum many-body scars are atypical energy eigenstates of chaotic quantum many-body systems that prevent certain special non-equilibrium initial conditions from thermalizing. We p…
The classical limit of Quantum Max-Cut
Vir B. Bulchandani, Stephen Piddock
It is well-known in physics that the limit of large quantum spin should be understood as a semiclassical limit. This raises the question of whether such emergent classicality f…
Nonlinear breathers with crystalline symmetries
Frank Schindler, Vir B. Bulchandani, Wladimir A. Benalcazar
Nonlinear lattice models can support "discrete breather" excitations that stay localized in space for all time. By contrast, the localized Wannier states of linear lattice models a…