Search Results - "Pollmann, Frank"

Detecting Equilibrium and Dynamical Quantum Phase Transitions in Ising Chains via Out-of-Time-Ordered Correlators by Heyl, Markus, Pollmann, Frank, Dóra, Balázs

“…Out-of-time-ordered (OTO) correlators have developed into a central concept quantifying quantum information transport, information scrambling, and quantum…”
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Ergodicity Breaking Arising from Hilbert Space Fragmentation in Dipole-Conserving Hamiltonians by Sala, Pablo, Rakovszky, Tibor, Verresen, Ruben, Knap, Michael, Pollmann, Frank

“…We show that the combination of charge and dipole conservation—characteristic of fracton systems—leads to an extensive fragmentation of the Hilbert space,…”
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Gapless Topological Phases and Symmetry-Enriched Quantum Criticality by Verresen, Ruben, Thorngren, Ryan, Jones, Nick G., Pollmann, Frank

“…We introduce topological invariants for gapless systems and study the associated boundary phenomena. More generally, the symmetry properties of the low-energy…”
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Diffusive Hydrodynamics of Out-of-Time-Ordered Correlators with Charge Conservation by Rakovszky, Tibor, Pollmann, Frank, von Keyserlingk, C. W.

“…The scrambling of quantum information in closed many-body systems, as measured by out-of-time-ordered correlation functions (OTOCs), has received considerable…”
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Many-body localization in a disordered quantum Ising chain by Kjäll, Jonas A, Bardarson, Jens H, Pollmann, Frank

“…Many-body localization occurs in isolated quantum systems when Anderson localization persists in the presence of finite interactions. Despite strong evidence…”
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Unbounded growth of entanglement in models of many-body localization by Bardarson, Jens H, Pollmann, Frank, Moore, Joel E

“…An important and incompletely answered question is whether a closed quantum system of many interacting particles can be localized by disorder. The time…”
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Operator Hydrodynamics, OTOCs, and Entanglement Growth in Systems without Conservation Laws by von Keyserlingk, C. W., Rakovszky, Tibor, Pollmann, Frank, Sondhi, S. L.

“…Thermalization and scrambling are the subject of much recent study from the perspective of many-body quantum systems with locally bounded Hilbert spaces (“spin…”
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The quantum sine-Gordon model with quantum circuits by Roy, Ananda, Schuricht, Dirk, Hauschild, Johannes, Pollmann, Frank, Saleur, Hubert

“…Analog quantum simulation has the potential to be an indispensable technique in the investigation of complex quantum systems. In this work, we numerically…”
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Observing non-ergodicity due to kinetic constraints in tilted Fermi-Hubbard chains by Scherg, Sebastian, Kohlert, Thomas, Sala, Pablo, Pollmann, Frank, Hebbe Madhusudhana, Bharath, Bloch, Immanuel, Aidelsburger, Monika

“…The thermalization of isolated quantum many-body systems is deeply related to fundamental questions of quantum information theory. While integrable or…”
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Real- and Imaginary-Time Evolution with Compressed Quantum Circuits by Lin, Sheng-Hsuan, Dilip, Rohit, Green, Andrew G., Smith, Adam, Pollmann, Frank

“…The current generation of noisy intermediate-scale quantum computers introduces new opportunities to study quantum many-body systems. In this paper, we show…”
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Entanglement entropy and negativity in the Ising model with defects by Rogerson, David, Pollmann, Frank, Roy, Ananda

“…A bstract Defects in two-dimensional conformal field theories (CFTs) contain signatures of their characteristics. In this work, we analyze entanglement…”
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Obtaining Highly Excited Eigenstates of Many-Body Localized Hamiltonians by the Density Matrix Renormalization Group Approach by Khemani, Vedika, Pollmann, Frank, Sondhi, S L

“…The eigenstates of many-body localized (MBL) Hamiltonians exhibit low entanglement. We adapt the highly successful density-matrix renormalization group method,…”
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Signatures of the many-body localization transition in the dynamics of entanglement and bipartite fluctuations by Singh, Rajeev, Bardarson, Jens H, Pollmann, Frank

“…The many-body localization transition is a dynamical quantum phase transition between a localized and an extended phase. We study this transition in the XXZ…”
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Simulating quantum many-body dynamics on a current digital quantum computer by Smith, Adam, Kim, M. S., Pollmann, Frank, Knolle, Johannes

“…Universal quantum computers are potentially an ideal setting for simulating many-body quantum dynamics that is out of reach for classical digital computers. We…”
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Signatures of Dirac Cones in a DMRG Study of the Kagome Heisenberg Model by He, Yin-Chen, Zaletel, Michael P., Oshikawa, Masaki, Pollmann, Frank

“…The antiferromagnetic spin-1/2 Heisenberg model on a kagome lattice is one of the most paradigmatic models in the context of spin liquids, yet the precise…”
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Topological characterization of fractional quantum Hall ground states from microscopic Hamiltonians by Zaletel, Michael P, Mong, Roger S K, Pollmann, Frank

“…We show how to numerically calculate several quantities that characterize topological order starting from a microscopic fractional quantum Hall Hamiltonian. To…”
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Realizing the symmetry-protected Haldane phase in Fermi–Hubbard ladders by Sompet, Pimonpan, Hirthe, Sarah, Bourgund, Dominik, Chalopin, Thomas, Bibo, Julian, Koepsell, Joannis, Bojović, Petar, Verresen, Ruben, Pollmann, Frank, Salomon, Guillaume, Gross, Christian, Hilker, Timon A., Bloch, Immanuel

“…Topology in quantum many-body systems has profoundly changed our understanding of quantum phases of matter. The model that has played an instrumental role in…”
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Distinct trivial phases protected by a point-group symmetry in quantum spin chains by Fuji, Yohei, Pollmann, Frank, Oshikawa, Masaki

“…The ground state of the S=1 antiferromagnetic Heisenberg chain belongs to the Haldane phase--a well-known example of the symmetry-protected topological phase…”
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Bosonic integer quantum Hall effect in an interacting lattice model by He, Yin-Chen, Bhattacharjee, Subhro, Moessner, R, Pollmann, Frank

“…We study a bosonic model with correlated hopping on a honeycomb lattice, and show that its ground state is a bosonic integer quantum Hall (BIQH) phase, a…”
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Theory of finite-entanglement scaling at one-dimensional quantum critical points by Pollmann, Frank, Mukerjee, Subroto, Turner, Ari M, Moore, Joel E

“…Studies of entanglement in many-particle systems suggest that most quantum critical ground states have infinitely more entanglement than noncritical states…”
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