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
35 papers · 2 filters
U(1) Wilson lattice gauge theories in digital quantum simulators
Christine Muschik, Markus Heyl, Esteban Martinez +7
Lattice gauge theories describe fundamental phenomena in nature, but calculating their real-time dynamics on classical computers is notoriously difficult. In a recent publication […
Restrictions on the Schmidt rank of bipartite unitary operators beyond dimension two
Alexander Müller-Hermes, Ion Nechita
There are none.
Direct observation of dynamical quantum phase transitions in an interacting many-body system
P. Jurcevic, H. Shen, P. Hauke +7
Dynamical quantum phase transitions (DQPTs) extend the concept of phase transitions and thus universality to the non-equilibrium regime. In this letter, we investigate DQPTs in a s…
Time evolution of coupled spin systems in a generalized Wigner representation
Bálint Koczor, Robert Zeier, Steffen J. Glaser
Phase-space representations as given by Wigner functions are a powerful tool for representing the quantum state and characterizing its time evolution in the case of infinite-dimens…
Uncertainty relations: An operational approach to the error-disturbance tradeoff
Joseph M. Renes, Volkher B. Scholz, Stefan Huber
The notions of error and disturbance appearing in quantum uncertainty relations are often quantified by the discrepancy of a physical quantity from its ideal value. However, these…
Almost all quantum channels are equidistant
Ion Nechita, Zbigniew Puchała, Łukasz Pawela +1
In this work we analyze properties of generic quantum channels in the case of large system size. We use random matrix theory and free probability to show that the distance between…
Towards Laser Control of Open Quantum Systems: Memory Effects
R. Puthumpally-Joseph, O. Atabek, E. Mangaud +2
Laser control of Open Quantum Systems (OQS) is a challenging issue as compared to its counterpart in isolated small size molecules, basically due to very large numbers of degrees o…
Quantum illumination reveals phase-shift inducing cloaking
U. Las Heras, R. Di Candia, K. G. Fedorov +3
In quantum illumination entangled light is employed to enhance the detection accuracy of an object when compared with the best classical protocol. On the other hand, cloaking is a…
Quantum sensing
C. L. Degen, F. Reinhard, P. Cappellaro
"Quantum sensing" describes the use of a quantum system, quantum properties or quantum phenomena to perform a measurement of a physical quantity. Historical examples of quantum sen…
An on-chip architecture for self-homodyned nonclassical light
Kevin A. Fischer, Yousif A. Kelaita, Neil V. Sapra +4
In the last decade, there has been remarkable progress on the practical integration of on-chip quantum photonic devices yet quantum state generators remain an outstanding challenge…
Multiple-quantum transitions and charge-induced decoherence of donor nuclear spins in silicon
David P. Franke, Moritz P. D. Pflüger, Kohei M. Itoh +1
We study single- and multi-quantum transitions of the nuclear spins of ionized arsenic donors in silicon and find quadrupolar effects on the coherence times, which we link to fluct…
On the observation of field-free orientation of a symmetric top molecule by terahertz laser pulses at high temperature
P. Babilotte, K. Hamraoui, F. Billard +4
We investigate experimentally and numerically the field-free orientation of the symmetric top molecule of methyl-iodide at high temperature using a terahertz radiation generated by…
Photon Statistics of Propagating Thermal Microwaves
J. Goetz, S. Pogorzalek, F. Deppe +7
In experiments with superconducting quantum circuits, characterizing the photon statistics of propagating microwave fields is a fundamental task. We quantify the ph…
Second-order decoherence mechanisms of a transmon qubit probed with thermal microwave states
J. Goetz, F. Deppe, P. Eder +9
Thermal microwave states are omnipresent noise sources in superconducting quantum circuits covering all relevant frequency regimes. We use them as a probe to identify three second-…
Dynamical modeling of pulsed two-photon interference
Kevin A. Fischer, Kai Müller, Konstantinos G. Lagoudakis +1
Single-photon sources are at the heart of quantum-optical networks, with their uniquely quantum emission and phenomenon of two-photon interference allowing for the generation and t…
On quantum additive Gaussian noise channels
Martin Idel, Robert Koenig
We give necessary and sufficient conditions for a Gaussian quantum channel to have a dilation involving a passive, i.e., number-preserving unitary. We then establish a normal form…
Universal Asymmetric Quantum Cloning Revisited
A. K. Hashagen
This paper revisits the universal asymmetric quantum cloning problem. We identify the symmetry properties of this optimisation problem, giving us access to the optimal qu…
Sandwiched Rényi Convergence for Quantum Evolutions
Alexander Müller-Hermes, Daniel Stilck Franca
We study the speed of convergence of a primitive quantum time evolution towards its fixed point in the distance of sandwiched Rényi divergences. For each of these distance measures…
Geometric inequalities from phase space translations
Stefan Huber, Robert Koenig, Anna Vershynina
We establish a quantum version of the classical isoperimetric inequality relating the Fisher information and the entropy power of a quantum state. The key tool is a Fisher informat…
Adiabatic Quantum Search in Open Systems
Dominik S. Wild, Sarang Gopalakrishnan, Michael Knap +2
Adiabatic quantum algorithms represent a promising approach to universal quantum computation. Whilst in a closed system these algorithms are limited by avoided level crossings, whe…
Real-time dynamics of lattice gauge theories with a few-qubit quantum computer
E. A. Martinez, C. A. Muschik, P. Schindler +8
Gauge theories are fundamental to our understanding of interactions between the elementary constituents of matter as mediated by gauge bosons. However, computing the real-time dyna…
Quantum-polarization state tomography
Ömer Bayraktar, Marcin Swillo, Carlota Canalias +1
We propose and demonstrate a method for quantum-state tomography of qudits encoded in the quantum polarization of -photon states. This is achieved by distributing photons no…
Dynamical Quantum Tomography
Michael Kech
We consider quantum state tomography with measurement procedures of the following type: First, we subject the quantum state we aim to identify to a know time evolution for a desire…
Efficient Pure State Quantum Tomography from Five Orthonormal Bases
Claudio Carmeli, Teiko Heinosaari, Michael Kech +2
For any finite dimensional Hilbert space, we construct explicitly five orthonormal bases such that the corresponding measurements allow for efficient tomography of an arbitrary pur…