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Obtaining highly-excited eigenstates of many-body localized Hamiltonians by the density matrix renormalization group
Vedika Khemani, Frank Pollmann, S. L. Sondhi
The eigenstates of many-body localized (MBL) Hamiltonians exhibit low entanglement. We adapt the highly successful density-matrix renormalization group method, which is usually use…
On the phase structure of driven quantum systems
Vedika Khemani, Achilleas Lazarides, Roderich Moessner +1
Clean and interacting periodically driven quantum systems are believed to exhibit a single, trivial "infinite-temperature" Floquet-ergodic phase. In contrast, here we show that the…
Efficient variational diagonalization of fully many-body localized Hamiltonians
Frank Pollmann, Vedika Khemani, J. Ignacio Cirac +1
We introduce a unitary matrix-product operator (UMPO) based variational method that approximately finds all the eigenstates of fully many-body localized (fMBL) one-dimensional Hami…
Low-frequency conductivity in many-body localized systems
Sarang Gopalakrishnan, Markus Mueller, Vedika Khemani +3
We argue that the a.c. conductivity in the many-body localized phase is a power law of frequency at low frequency: specifically, with the exponent ap…