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
33 papers · 1 filter
Are almost-symmetries almost linear?
Javier Cuesta, Michael M. Wolf
It pends. Wigner's symmetry theorem implies that transformations that preserve transition probabilities of pure quantum states are linear maps on the level of density operators…
Bounds on the bipartite entanglement entropy for oscillator systems with or without disorder
Vincent Beaud, Julian Sieber, Simone Warzel
We give a direct alternative proof of an area law for the entanglement entropy of the ground state of disordered oscillator systems---a result due to Nachtergaele, Sims and Stolz.…
Classification of Matrix-Product Unitaries with Symmetries
Zongping Gong, Christoph Sünderhauf, Norbert Schuch +1
We prove that matrix-product unitaries (MPUs) with on-site unitary symmetries are completely classified by the (chiral) index and the cohomology class of the symmetry group , pr…
Optimal Control of Hybrid Optomechanical Systems for Generating Non-Classical States of Mechanical Motion
Ville Bergholm, Witlef Wieczorek, Thomas Schulte-Herbrueggen +1
Cavity optomechanical systems are one of the leading experimental platforms for controlling mechanical motion in the quantum regime. We exemplify that the control over cavity optom…
Time-dependent study of disordered models with infinite projected entangled pair states
Claudius Hubig, J. Ignacio Cirac
Infinite projected entangled pair states (iPEPS), the tensor network ansatz for two-dimensional systems in the thermodynamic limit, already provide excellent results on ground-stat…
Spin transport in a magnetic insulator with zero effective damping
Tobias Wimmer, Matthias Althammer, Lukas Liensberger +5
Applications based on spin currents strongly profit from the control and reduction of their effective damping and their transport properties. We here experimentally observe magnon…
Classifying Snapshots of the Doped Hubbard Model with Machine Learning
Annabelle Bohrdt, Christie S. Chiu, Geoffrey Ji +6
Quantum gas microscopes for ultracold atoms can provide high-resolution real-space snapshots of complex many-body systems. We implement machine learning to analyze and classify suc…
Tuning the Fröhlich exciton-phonon scattering in monolayer MoS2
Bastian Miller, Jessica Lindlau, Max Bommert +5
A direct band gap, remarkable light-matter coupling as well as strong spin-orbit and Coulomb interaction establish two-dimensional (2D) crystals of transition metal dichalcogenides…
Delocalization and continuous spectrum for ultrametric random operators
Per von Soosten, Simone Warzel
This paper studies the delocalized regime of an ultrametric random operator whose independent entries have variances decaying in a suitable hierarchical metric on . Whe…
Semantic Security via Seeded Modular Coding Schemes and Ramanujan Graphs
Moritz Wiese, Holger Boche
A novel type of functions called biregular irreducible functions is introduced and applied as security components (instead of, e.g., universal hash functions) in seeded modular wir…
Phase Spaces, Parity Operators, and the Born-Jordan Distribution
Bálint Koczor, Frederik vom Ende, Maurice de Gosson +2
Phase spaces as given by the Wigner distribution function provide a natural description of infinite-dimensional quantum systems. They are an important tool in quantum optics and ha…
Two-temperature scales in the triangular-lattice Heisenberg antiferromagnet
Lei Chen, Dai-Wei Qu, Han Li +5
The anomalous thermodynamic properties of the paradigmatic frustrated spin-1/2 triangular lattice Heisenberg antiferromagnet (TLH) has remained an open topic of research over decad…
Strong quantum interactions prevent quasiparticle decay
Ruben Verresen, Frank Pollmann, Roderich Moessner
Quantum states of matter---such as solids, magnets and topological phases---typically exhibit collective excitations---phonons, magnons, anyons. These involve the motion of many pa…
Interaction quench and thermalization in a one-dimensional topological Kondo insulator
I. Hagymási, C. Hubig, U. Schollwöck
We study the nonequilibrium dynamics of a one-dimensional topological Kondo insulator, modelled by a -wave Anderson lattice model, following a quantum quench of the on-site inte…
Learning multiple order parameters with interpretable machines
Ke Liu, Jonas Greitemann, Lode Pollet
Machine-learning techniques are evolving into a subsidiary tool for studying phase transitions in many-body systems. However, most studies are tied to situations involving only one…
Solving efficiently the dynamics of many-body localized systems at strong disorder
Giuseppe De Tomasi, Frank Pollmann, Markus Heyl
We introduce a method to efficiently study the dynamical properties of many-body localized systems in the regime of strong disorder and weak interactions. Our method reproduces qua…
String patterns in the doped Hubbard model
Christie S. Chiu, Geoffrey Ji, Annabelle Bohrdt +6
Understanding strongly correlated quantum many-body states is one of the most difficult challenges in modern physics. For example, there remain fundamental open questions on the ph…
The Atomic Density on the Thomas--Fermi Length Scale for the Chandrasekhar Hamiltonian
Konstantin Merz, Heinz Siedentop
We consider a large neutral atom of atomic number , modeled by a pseudo-relativistic Hamiltonian of Chandrasekhar. We study its suitably rescaled one-particle ground state densi…
Anisotropic Strain Induced Soliton Movement Changes Stacking Order and Bandstructure of Graphene Multilayers
Fabian R. Geisenhof, Felix Winterer, Stefan Wakolbinger +11
The crystal structure of solid-state matter greatly affects its electronic properties. For example in multilayer graphene, precise knowledge of the lateral layer arrangement is cru…
Symmetry-adapted decomposition of tensor operators and the visualization of coupled spin systems
David Leiner, Robert Zeier, Steffen J. Glaser
We study the representation and visualization of finite-dimensional quantum systems. In a generalized Wigner representation, multi-spin operators can be decomposed into a symmetry-…
Echo trains in pulsed electron spin resonance of a strongly coupled spin ensemble
Stefan Weichselbaumer, Matthias Zens, Christoph W. Zollitsch +4
We report on a novel dynamical phenomenon in electron spin resonance experiments of phosphorus donors. When strongly coupling the paramagnetic ensemble to a superconducting lumped…
Observation of many-body localization in a one-dimensional system with single-particle mobility edge
Thomas Kohlert, Sebastian Scherg, Xiao Li +4
We experimentally study many-body localization (MBL) with ultracold atoms in a weak one-dimensional quasiperiodic potential, which in the noninteracting limit exhibits an intermedi…
Atomtronics with a spin: statistics of spin transport and non-equilibrium orthogonality catastrophe in cold quantum gases
Jhih-Shih You, Richard Schmidt, Dmitri A. Ivanov +2
We propose to investigate the full counting statistics of nonequilibrium spin transport with an ultracold atomic quantum gas. The setup makes use of the spin control available in a…
Parametric instabilities of interacting bosons in periodically-driven 1D optical lattices
K. Wintersperger, M. Bukov, J. Näger +6
Periodically-driven quantum systems are currently explored in view of realizing novel many-body phases of matter. This approach is particularly promising in gases of ultracold atom…