831 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Technical University of MunichDE615 papers
- Ludwig-Maximilians-Universität MünchenDE442 papers
- Max Planck Institute of Quantum OpticsDE404 papers
- Bavarian Academy of Sciences and HumanitiesDE95 papers
- Harvard UniversityUS93 papers
- Imperial College LondonGB90 papers
- Walther Meissner InstituteDE84 papers
- Centre National de la Recherche ScientifiqueFR75 papers
- Center for NanoScienceDE69 papers
- ETH ZurichCH49 papers
- University of NottinghamGB41 papers
- Max Planck Institute for the Physics of Complex SystemsDE40 papers
193 papers · 1 filter
Topological lower bound on quantum chaos by entanglement growth
Zongping Gong, Lorenzo Piroli, J. Ignacio Cirac
A fundamental result in modern quantum chaos theory is the Maldacena-Shenker-Stanford upper bound on the growth of out-of-time-order correlators, whose infinite-temperature limit i…
On tensor network representations of the (3+1)d toric code
Clement Delcamp, Norbert Schuch
We define two dual tensor network representations of the (3+1)d toric code ground state subspace. These two representations, which are obtained by initially imposing either family…
On the stability of topological order in tensor network states
Dominic J. Williamson, Clement Delcamp, Frank Verstraete +1
We construct a tensor network representation of the 3d toric code ground state that is stable to a generating set of uniform local tensor perturbations, including those that do not…
Rényi free energy and variational approximations to thermal states
Giacomo Giudice, Aslı Çakan, J. Ignacio Cirac +1
We propose the construction of thermodynamic ensembles that minimize the Rényi free energy, as an alternative to Gibbs states. For large systems, the local properties of these Rény…
Quantum simulation with fully coherent dipole--dipole-interactions mediated by three-dimensional subwavelength atomic arrays
Katharina Brechtelsbauer, Daniel Malz
Quantum simulators employing cold atoms are among the most promising approaches to tackle quantum many-body problems. Nanophotonic structures are widely employed to engineer the ba…
Exact thermalization dynamics in the "Rule 54" Quantum Cellular Automaton
Katja Klobas, Bruno Bertini, Lorenzo Piroli
We study the out-of-equilibrium dynamics of the quantum cellular automaton known as "Rule 54". For a class of low-entangled initial states, we provide an analytic description of th…
Generalization of group-theoretic coherent states for variational calculations
Tommaso Guaita, Lucas Hackl, Tao Shi +2
We introduce new families of pure quantum states that are constructed on top of the well-known Gilmore-Perelomov group-theoretic coherent states. We do this by constructing unitari…
Analyzing non-equilibrium quantum states through snapshots with artificial neural networks
A. Bohrdt, S. Kim, A. Lukin +5
Current quantum simulation experiments are starting to explore non-equilibrium many-body dynamics in previously inaccessible regimes in terms of system sizes and time scales. There…
Characterizing Topological Excitations of a Long-Range Heisenberg Model with Trapped Ions
Stefan Birnkammer, Annabelle Bohrdt, Fabian Grusdt +1
Realizing and characterizing interacting topological phases in synthetic quantum systems is a formidable challenge. Here, we propose a Floquet protocol to realize the antiferromagn…
Quantum phases of two-dimensional gauge theory coupled to single-component fermion matter
Umberto Borla, Bhilahari Jeevanesan, Frank Pollmann +1
We investigate the rich quantum phase diagram of Wegner's theory of discrete Ising gauge fields interacting with symmetric single-component fermion matter hopping on a two-d…
Three qubits in less than three baths: Beyond two-body system-bath interactions in quantum refrigerators
Ahana Ghoshal, Sreetama Das, Amit Kumar Pal +2
We show that quantum absorption refrigerators, which have traditionally been studied as of three qubits, each of which is connected to a thermal reservoir, can also be constructed…
BaOsO: A Hund's metal in the presence of strong spin-orbit coupling
Max Bramberger, Jernej Mravlje, Martin Grundner +2
We investigate the 5d transition metal oxide BaOsO within a combination of density functional theory (DFT) and dynamical mean-field theory (DMFT), using a matrix-product-state…
lattice gauge theories and Kitaev's toric code: A scheme for analog quantum simulation
Lukas Homeier, Christian Schweizer, Monika Aidelsburger +2
Kitaev's toric code is an exactly solvable model with -topological order, which has potential applications in quantum computation and error correction. However, a dir…
Supersymmetric boundaries of one-dimensional phases of fermions beyond symmetry-protected topological states
Alex Turzillo, Minyoung You
It has recently been demonstrated that protected supersymmetry emerges on the boundaries of one-dimensional intrinsically fermionic symmetry protected trivial (SPT) phases. Here we…
Topological two-dimensional Floquet lattice on a single superconducting qubit
Daniel Malz, Adam Smith
Previous theoretical and experimental research has shown that current NISQ devices constitute powerful platforms for analogue quantum simulation. With the exquisite level of contro…
Design of an optomagnonic crystal: towards optimal magnon-photon mode matching at the microscale
Jasmin Graf, Sanchar Sharma, Hans Huebl +1
We put forward the concept of an optomagnonic crystal: a periodically patterned structure at the microscale based on a magnetic dielectric, which can co-localize magnon and photon…
Infinite-Dimensional Programmable Quantum Processors
Martina Gschwendtner, Andreas Winter
A universal programmable quantum processor uses program quantum states to apply an arbitrary quantum channel to an input state. We generalize the concept of a finite-dimensional pr…
Programmability of covariant quantum channels
Martina Gschwendtner, Andreas Bluhm, Andreas Winter
A programmable quantum processor uses the states of a program register to specify one element of a set of quantum channels which is applied to an input register. It is well-known t…
Universal length dependence of tensile stress in nanomechanical string resonators
Maximilian Bückle, Yannick S. Klaß, Felix B. Nägele +2
We investigate the tensile stress in freely suspended nanomechanical string resonators, and observe a material-independent dependence on the resonator length. We compare strongly s…
Antiferromagnetic magnon pseudospin: Dynamics and diffusive transport
Akashdeep Kamra, Tobias Wimmer, Hans Huebl +1
We formulate a theoretical description of antiferromagnetic magnons and their transport in terms of an associated pseudospin. The need and strength of this formulation emerges from…
A Moment for Random Measurements
Lukas Knips
Quantum entanglement is one of the core features of quantum theory. While it is typically revealed by measurements along carefully chosen directions, here we review different metho…
Emergent Fracton Dynamics in a Non-Planar Dimer Model
Johannes Feldmeier, Frank Pollmann, Michael Knap
We study the late time relaxation dynamics of a pure lattice gauge theory in the form of a dimer model on a bilayer geometry. To this end, we first develop a proper notion o…
Characterization and tomography of a hidden qubit
M. Pechal, G. Salis, M. Ganzhorn +3
In circuit-based quantum computing, the available gate set typically consists of single-qubit gates acting on each individual qubit and at least one entangling gate between pairs o…
Microwave spectroscopy of the low-temperature skyrmion state in Cu2OSeO3
Aisha Aqeel, Jan Sahliger, Takuya Taniguchi +7
In the cubic chiral magnet Cu2OSeO3 a low-temperature skyrmion state (LTS) and a concomitant tilted conical state are observed for magnetic fields parallel to <100>. In this work,…