Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.2k papers
- The University of TokyoJP948 papers
- Excellence Cluster UniverseDE902 papers
- University of BonnDE857 papers
- Max Planck Institute for PhysicsDE848 papers
- Ludwig-Maximilians-Universität MünchenDE836 papers
- Lawrence Berkeley National LaboratoryUS774 papers
- University of CopenhagenDK774 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR757 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR745 papers
- European Organization for Nuclear ResearchCH705 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT682 papers
22 papers · 2 filters
Hypothesis Testing on Invariant Subspaces of the Symmetric Group, Part I - Quantum Sanov's Theorem and Arbitrarily Varying Sources
J. Nötzel
We report a proof of the quantum Sanov Theorem by elementary application of basic facts about representations of the symmetric group, together with a complete characterization of t…
Time-optimal control of SU(2) quantum operations
A. Garon, S. J. Glaser, D. Sugny
We propose an analysis of the time-optimal control of SU(2) quantum operations. By using the Pontryagin Maximum Principle, we show how to determine the optimal trajectory reaching…
The Classical-Quantum Multiple Access Channel with Conferencing Encoders and with Common Messages
Holger Boche, Janis Noetzel
We prove coding theorems for two scenarios of cooperating encoders for the multiple access channel with two classical inputs and one quantum output. In the first scenario (ccq-MAC…
Quantum Subdivision Capacities and Continuous-time Quantum Coding
Alexander Müller-Hermes, David Reeb, Michael M. Wolf
Quantum memories can be regarded as quantum channels that transmit information through time without moving it through space. Aiming at a reliable storage of information we may thus…
Quantum error correction in a solid-state hybrid spin register
G. Waldherr, Y. Wang, S. Zaiser +7
Hybrid quantum systems seek to combine the strength of its constituents to master the fundamental conflicting requirements of quantum technology: fast and accurate systems control…
Coexistence of effects from an algebra of two projections
Teiko Heinosaari, Jukka Kiukas, Daniel Reitzner
The coexistence relation of quantum effects is a fundamental structure, describing those pairs of experimental events that can be implemented in a single setup. Only in the simples…
High fidelity spin entanglement using optimal control
Florian Dolde, Ville Bergholm, Ya Wang +7
Precise control of quantum systems is of fundamental importance for quantum device engineering, such as is needed in the fields of quantum information processing, high-resolution s…
Efficient synthesis of quantum gates on indirectly coupled spins
Haidong Yuan, Daxiu Wei, Yajuan Zhang +2
Experiments in coherent nuclear and electron magnetic resonance,and quantum computing in general correspond to control of quantum mechanical systems, guiding them from initial to f…
The Circuit Quantum Electrodynamical Josephson Interferometer
Robert Jirschik, Michael J. Hartmann
Arrays of circuit cavities offer fascinating perspectives for exploring quantum many-body systems in a driven dissipative regime where excitation losses are continuously compensate…
Dual-Path Methods for Propagating Quantum Microwaves
R. Di Candia, E. P. Menzel, L. Zhong +4
We study quantum state tomography, entanglement detection, and channel noise reconstruction of propagating quantum microwaves via dual-path methods. The presented schemes make use…
Self-Consistent Projection Operator Theory for Quantum Many-Body Systems
Peter Degenfeld-Schonburg, Michael J. Hartmann
We derive an exact equation of motion for the reduced density matrices of individual subsystems of quantum many-body systems of any lattice dimension and arbitrary system size. Our…
Coexistence does not imply joint measurability
David Reeb, Daniel Reitzner, Michael M. Wolf
One of the hallmarks of quantum theory is the realization that distinct measurements cannot in general be performed simultaneously, in stark contrast to classical physics. In this…
Photon correlations from ultra-strong optical nonlinearities
Alessandro Ridolfo, Elena del Valle, Michael J. Hartmann
We study the full field and frequency filtered output photon statistics of a resonator in thermal equilibrium with a bath and containing an arbitrarily large quartic nonlinearity.…
Fault-ignorant Quantum Search
Peter Vrana, David Reeb, Daniel Reitzner +1
We investigate the problem of quantum searching on a noisy quantum computer. Taking a 'fault-ignorant' approach, we analyze quantum algorithms that solve the task for various diffe…
An improved Landauer Principle with finite-size corrections
David Reeb, Michael M. Wolf
Landauer's Principle relates entropy decrease and heat dissipation during logically irreversible processes. Most theoretical justifications of Landauer's Principle either use therm…
On quantum Renyi entropies: a new generalization and some properties
Martin Müller-Lennert, Frédéric Dupuis, Oleg Szehr +2
The Renyi entropies constitute a family of information measures that generalizes the well-known Shannon entropy, inheriting many of its properties. They appear in the form of uncon…
Emitters of -photon bundles
C. Sánchez Muñoz, E. del Valle, A. González Tudela +6
We propose a scheme based on the coherent excitation of a two-level system in a cavity to generate an ultrabright CW and focused source of quantum light that comes in groups (bundl…
The conditional entropy power inequality for Gaussian quantum states
Robert Koenig
We propose a generalization of the quantum entropy power inequality involving conditional entropies. For the special case of Gaussian states, we give a proof based on perturbation…
Correlator expansion approach to stationary states of weakly coupled cavity arrays
Elena del Valle, Michael J. Hartmann
We introduce a method for calculating the stationary state of a translation invariant array of weakly coupled cavities in the presence of dissipation and coherent as well as incohe…
Tight bound on relative entropy by entropy difference
David Reeb, Michael M. Wolf
We prove a lower bound on the relative entropy between two finite-dimensional states in terms of their entropy difference and the dimension of the underlying space. The inequality…
Photon solid phases in driven arrays of nonlinearly coupled cavities
Jiasen Jin, Davide Rossini, Rosario Fazio +2
We introduce and study the properties of an array of QED cavities coupled by nonlinear elements, in the presence of photon leakage and driven by a coherent source. The nonlinear co…
Arbitrarily Small Amounts of Correlation for Arbitrarily Varying Quantum Channels
Holger Boche, Janis Noetzel
As our main result we show that, in order to achieve the randomness assisted message - and entanglement transmission capacities of a finite arbitrarily varying quantum channel it i…