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Dissipation-Induced Order: The Quantum Spin Chain Coupled to an Ohmic Bath
Manuel Weber, David J. Luitz, Fakher F. Assaad
We consider an antiferromagnetic quantum Heisenberg chain where each site is coupled to an independent bosonic bath with ohmic dissipation. The coupling to the bath preserv…
Random matrix theory for quantum and classical metastability in local Liouvillians
Jimin L. Li, Dominic C. Rose, Juan P. Garrahan +1
We consider the effects of strong dissipation in quantum systems with a notion of locality, which induces a hierarchy of many-body relaxation timescales as shown in [Phys. Rev. Let…
Avalanches and many-body resonances in many-body localized systems
Alan Morningstar, Luis Colmenarez, Vedika Khemani +2
We numerically study both the avalanche instability and many-body resonances in strongly-disordered spin chains exhibiting many-body localization (MBL). We distinguish between a fi…
Magnetization process and ordering of the pyrochlore magnet in a field
Imre Hagymási, Robin Schäfer, Roderich Moessner +1
We study the pyrochlore Heisenberg antiferromagnet in a magnetic field. Using large scale density-matrix renormalization group (DMRG) calculations for clusters up to …
Information Dynamics in a Model with Hilbert Space Fragmentation
Dominik Hahn, Paul A. McClarty, David J. Luitz
The fully frustrated ladder - a quasi-1D geometrically frustrated spin one half Heisenberg model - is non-integrable with local conserved quantities on rungs of the ladder, inducin…
Polynomial filter diagonalization of large Floquet unitary operators
David J. Luitz
Periodically driven quantum many-body systems play a central role for our understanding of nonequilibrium phenomena. For studies of quantum chaos, thermalization, many-body localiz…