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
19 papers · 2 filters
Markovianity of an emitter coupled to a structured spin chain bath
J. Roos, J. I. Cirac, M. C. Bañuls
We analyze the dynamics of a spin 1/2 subsystem coupled to a spin chain. We simulate numerically the full quantum many-body system for various sets of parameters and initial states…
Sideband-resolved resonator electromechanics on the single-photon level based on a nonlinear Josephson inductance
Philip Schmidt, Mohammad T. Amawi, Stefan Pogorzalek +4
Light-matter interaction in optomechanical systems is the foundation for ultra-sensitive detection schemes [1,2] as well as the generation of phononic and photonic quantum states […
Universal superposition codes: capacity regions of compound quantum broadcast channel with confidential messages
Holger Boche, Gisbert Janßen, Sajad Saeedinaeeni
We derive universal codes for transmission of broadcast and confidential messages over classical-quantum-quantum and fully quantum channels. These codes are robust to channel uncer…
Simulating Lattice Gauge Theories within Quantum Technologies
M. C. Bañuls, R. Blatt, J. Catani +17
Lattice gauge theories, which originated from particle physics in the context of Quantum Chromodynamics (QCD), provide an important intellectual stimulus to further develop quantum…
Multipartite Entanglement Analysis From Random Correlations
Lukas Knips, Jan Dziewior, Waldemar Kłobus +5
Quantum entanglement is usually revealed via a well aligned, carefully chosen set of measurements. Yet, under a number of experimental conditions, for example in communication with…
Multimode Fock states with large photon number: effective descriptions and applications in quantum metrology
M. Perarnau-Llobet, A. González-Tudela, J. I. Cirac
We develop general tools to characterise and efficiently compute relevant observables of multimode -photon states generated in non-linear decays in one-dimensional waveguides. W…
Probing thermalization through spectral analysis with matrix product operators
Yilun Yang, Sofyan Iblisdir, J. Ignacio Cirac +1
We combine matrix product operator techniques with Chebyshev polynomial expansions and present a method that is able to explore spectral properties of quantum many-body Hamiltonian…
Long-distance distribution of atom-photon entanglement at telecom wavelength
Tim van Leent, Matthias Bock, Robert Garthoff +6
Entanglement between stationary quantum memories and photonic channels is the essential resource for future quantum networks. Together with entanglement distillation it will enable…
On the modified logarithmic Sobolev inequality for the heat-bath dynamics for 1D systems
Ivan Bardet, Angela Capel, Angelo Lucia +2
The mixing time of Markovian dissipative evolutions of open quantum many-body systems can be bounded using optimal constants of certain quantum functional inequalities, such as the…
Quantum chaos in the Brownian SYK model with large finite : OTOCs and tripartite information
Christoph Sünderhauf, Lorenzo Piroli, Xiao-Liang Qi +2
We consider the Brownian SYK model of interacting Majorana fermions, with random couplings that are taken to vary independently at each time. We study the out-of-time-ordered c…
Dissipative correlated dynamics of a moving impurity immersed in a Bose-Einstein Condensate
S. I. Mistakidis, F. Grusdt, G. M. Koutentakis +1
We unravel the nonequilibrium correlated quantum quench dynamics of an impurity traveling through a harmonically confined Bose-Einstein condensate in one-dimension. For weak repuls…
Many-body topological invariants from randomized measurements
Andreas Elben, Jinlong Yu, Guanyu Zhu +4
The classification of symmetry-protected topological (SPT) phases in one dimension has been recently achieved, and had a fundamental impact in our understanding of quantum phases i…
Nondestructive photon counting in waveguide QED
Daniel Malz, J. Ignacio Cirac
Number-resolving single-photon detectors represent a key technology for a host of quantum optics protocols, but despite significant efforts, state-of-the-art devices are limited to…
Removing Staggered Fermionic Matter in and Lattice Gauge Theories
Erez Zohar, J. Ignacio Cirac
Gauge theories, through the local symmetry which is in their core, exhibit many local constraints, that must be taken care of and addressed in any calculation. In the Hamiltonian p…
Minimal energy cost of entanglement extraction
Lucas Hackl, Robert H. Jonsson
We compute the minimal energy cost for extracting entanglement from the ground state of a bosonic or fermionic quadratic system. Specifically, we find the minimal energy increase $…
Experimentally reducing the quantum measurement back-action in work distributions by a collective measurement
Kang-Da Wu, Yuan Yuan, Guo-Yong Xiang +3
In quantum thermodynamics, the standard approach to estimate work fluctuations in unitary processes is based on two projective measurements, one performed at the beginning of the p…
Reachability in Infinite Dimensional Unital Open Quantum Systems with Switchable GKS-Lindblad Generators
Frederik vom Ende, Gunther Dirr, Michael Keyl +1
In quantum systems theory one of the fundamental problems boils down to: given an initial state, which final states can be reached by the dynamic system in question. Here we consid…
Secure quantum remote state preparation of squeezed microwave states
S. Pogorzalek, K. G. Fedorov, M. Xu +10
Quantum communication protocols based on nonclassical correlations can be more efficient than known classical methods and offer intrinsic security over direct state transfer. In pa…
Matrix Product States: Entanglement, symmetries, and state transformations
David Sauerwein, Andras Molnar, J. Ignacio Cirac +1
We analyze entanglement in the family of translationally-invariant matrix product states (MPS). We give a criterion to determine when two states can be transformed into each other…