Search Results - "Elben, Andreas"

Probing Rényi entanglement entropy via randomized measurements by Brydges, Tiff, Elben, Andreas, Jurcevic, Petar, Vermersch, Benoît, Maier, Christine, Lanyon, Ben P, Zoller, Peter, Blatt, Rainer, Roos, Christian F

“…Entanglement is a key feature of many-body quantum systems. Measuring the entropy of different partitions of a quantum system provides a way to probe its…”
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Probing Many-Body Quantum Chaos with Quantum Simulators by Joshi, Lata Kh, Elben, Andreas, Vikram, Amit, Vermersch, Benoît, Galitski, Victor, Zoller, Peter

“…The spectral form factor (SFF), characterizing statistics of energy eigenvalues, is a key diagnostic of many-body quantum chaos. In addition, partial spectral…”
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Theoretical and Experimental Perspectives of Quantum Verification by Carrasco, Jose, Elben, Andreas, Kokail, Christian, Kraus, Barbara, Zoller, Peter

“…In this perspective we discuss verification of quantum devices in the context of specific examples formulated as proposed experiments. Our first example is…”
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Symmetry-resolved entanglement detection using partial transpose moments by Neven, Antoine, Carrasco, Jose, Vitale, Vittorio, Kokail, Christian, Elben, Andreas, Dalmonte, Marcello, Calabrese, Pasquale, Zoller, Peter, Vermersch, Benoȋt, Kueng, Richard, Kraus, Barbara

“…We propose an ordered set of experimentally accessible conditions for detecting entanglement in mixed states. The k -th condition involves comparing moments of…”
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A randomized measurement toolbox for an interacting Rydberg-atom quantum simulator by Notarnicola, Simone, Elben, Andreas, Lahaye, Thierry, Browaeys, Antoine, Montangero, Simone, Vermersch, Benoît

“…Abstract We present a toolbox to probe quantum many-body states implemented on Rydberg-atoms quantum hardware via randomized measurements. We illustrate the…”
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Proposal for measuring out-of-time-ordered correlators at finite temperature with coupled spin chains by Sundar, Bhuvanesh, Elben, Andreas, Joshi, Lata Kh, Zache, Torsten V

“…Abstract Information scrambling, which is the spread of local information through a system’s many-body degrees of freedom, is an intrinsic feature of many-body…”
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Digital quantum simulation, Trotter errors, and quantum chaos of the kicked top by Sieberer, Lukas M., Olsacher, Tobias, Elben, Andreas, Heyl, Markus, Hauke, Philipp, Haake, Fritz, Zoller, Peter

“…This work aims at giving Trotter errors in digital quantum simulation (DQS) of collective spin systems an interpretation in terms of quantum chaos of the…”
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Symmetry-resolved dynamical purification in synthetic quantum matter by Vitale, Vittorio, Elben, Andreas, Kueng, Richard, Neven, Antoine, Carrasco, Jose, Kraus, Barbara, Zoller, Peter, Calabrese, Pasquale, Vermersch, Benoit, Dalmonte, Marcello

“…When a quantum system initialized in a product state is subjected to either coherent or incoherent dynamics, the entropy of any of its connected partitions…”
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Robust Estimation of the Quantum Fisher Information on a Quantum Processor by Vitale, Vittorio, Rath, Aniket, Jurcevic, Petar, Elben, Andreas, Branciard, Cyril, Vermersch, Benoît

“…We present the experimental measurement, on a quantum processor, of a series of polynomial lower bounds that to the quantum Fisher information (QFI), a…”
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Entanglement Hamiltonian tomography in quantum simulation by Kokail, Christian, van Bijnen, Rick, Elben, Andreas, Vermersch, Benoît, Zoller, Peter

“…Entanglement is the crucial ingredient of quantum many-body physics, and characterizing and quantifying entanglement in the closed-system dynamics of quantum…”
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Quantum Information Scrambling in a Trapped-Ion Quantum Simulator with Tunable Range Interactions by Joshi, Manoj K., Elben, Andreas, Vermersch, Benoît, Brydges, Tiff, Maier, Christine, Zoller, Peter, Blatt, Rainer, Roos, Christian F.

“…In ergodic many-body quantum systems, locally encoded quantum information becomes, in the course of time evolution, inaccessible to local measurements. This…”
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Mixed-State Entanglement from Local Randomized Measurements by Elben, Andreas, Kueng, Richard, Huang, Hsin-Yuan Robert, van Bijnen, Rick, Kokail, Christian, Dalmonte, Marcello, Calabrese, Pasquale, Kraus, Barbara, Preskill, John, Zoller, Peter, Vermersch, Benoît

“…We propose a method for detecting bipartite entanglement in a many-body mixed state based on estimating moments of the partially transposed density matrix. The…”
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Importance Sampling of Randomized Measurements for Probing Entanglement by Rath, Aniket, van Bijnen, Rick, Elben, Andreas, Zoller, Peter, Vermersch, Benoît

“…We show that combining randomized measurement protocols with importance sampling allows for characterizing entanglement in significantly larger quantum systems…”
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The randomized measurement toolbox by Elben, Andreas, Flammia, Steven T., Huang, Hsin-Yuan, Kueng, Richard, Preskill, John, Vermersch, Benoît, Zoller, Peter

“…Programmable quantum simulators and quantum computers are opening unprecedented opportunities for exploring and exploiting the properties of highly entangled…”
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Many-Body Chern Number from Statistical Correlations of Randomized Measurements by Cian, Ze-Pei, Dehghani, Hossein, Elben, Andreas, Vermersch, Benoît, Zhu, Guanyu, Barkeshli, Maissam, Zoller, Peter, Hafezi, Mohammad

“…One of the main topological invariants that characterizes several topologically ordered phases is the many-body Chern number (MBCN). Paradigmatic examples…”
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Quantum Variational Learning of the Entanglement Hamiltonian by Kokail, Christian, Sundar, Bhuvanesh, Zache, Torsten V., Elben, Andreas, Vermersch, Benoît, Dalmonte, Marcello, van Bijnen, Rick, Zoller, Peter

“…Learning the structure of the entanglement Hamiltonian (EH) is central to characterizing quantum many-body states in analog quantum simulation. We describe a…”
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Cross-Platform Verification of Intermediate Scale Quantum Devices by Elben, Andreas, Vermersch, Benoît, van Bijnen, Rick, Kokail, Christian, Brydges, Tiff, Maier, Christine, Joshi, Manoj K, Blatt, Rainer, Roos, Christian F, Zoller, Peter

“…We describe a protocol for cross-platform verification of quantum simulators and quantum computers. We show how to measure directly the overlap Tr[ρ_{1}ρ_{2}]…”
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Many-body topological invariants from randomized measurements in synthetic quantum matter by Elben, Andreas, Yu, Jinlong, Zhu, Guanyu, Hafezi, Mohammad, Pollmann, Frank, Zoller, Peter, Vermersch, Benoît

“…Many-body topological invariants, as quantized highly nonlocal correlators of the many-body wave function, are at the heart of the theoretical description of…”
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Fermionic Correlation Functions from Randomized Measurements in Programmable Atomic Quantum Devices by Naldesi, Piero, Elben, Andreas, Minguzzi, Anna, Clément, David, Zoller, Peter, Vermersch, Benoît

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Benchmarking highly entangled states on a 60-atom analogue quantum simulator by Shaw, Adam L., Chen, Zhuo, Choi, Joonhee, Mark, Daniel K., Scholl, Pascal, Finkelstein, Ran, Elben, Andreas, Choi, Soonwon, Endres, Manuel

“…Quantum systems have entered a competitive regime in which classical computers must make approximations to represent highly entangled quantum states 1 , 2 …”
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