Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.9k papers
- University of MichiganUS2k papers
- Institute for High Energy PhysicsES1.9k papers
- University College LondonGB1.9k papers
- University of ManchesterGB1.9k papers
- University of BonnDE1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.8k papers
- Brookhaven National LaboratoryUS1.8k papers
- University of ArizonaUS1.8k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.8k papers
- Max Planck Institute for PhysicsDE1.8k papers
- Aix-Marseille UniversitéFR1.8k papers
25 papers · 2 filters
Finite de Finetti theorem for conditional probability distributions describing physical theories
Matthias Christandl, Ben Toner
We work in a general framework where the state of a physical system is defined by its behaviour under measurement and the global state is constrained by no-signalling conditions. W…
Monitoring derivation of the quantum linear Boltzmann equation
Klaus Hornberger, Bassano Vacchini
We show how the effective equation of motion for a distinguished quantum particle in an ideal gas environment can be obtained by means of the monitoring approach introduced in [EPL…
Monitoring atom-atom entanglement and decoherence in a solvable tripartite open system in cavity QED
Matteo Bina, Federico Casagrande, Alfredo Lulli +1
We present a fully analytical solution of the dynamics of two strongly-driven atoms resonantly coupled to a dissipative cavity field mode. We show that an initial atom-atom entangl…
Mesoscopic Spin-Boson Models of Trapped Ions
D. Porras, F. Marquardt, J. von Delft +1
Trapped ions arranged in Coulomb crystals provide us with the elements to study the physics of a single spin coupled to a boson bath. In this work we show that optical forces allow…
A number filter for matter-waves
G. Nandi, A. Sizmann, J. Fortágh +1
In current Bose-Einstein condensate experiments, the shot-to-shot variation of atom number fluctuates up to 10%. In here, we present a procedure to suppress such fluctuations by us…
Experimental demonstration of a quantum protocol for Byzantine agreement and liar detection
Sascha Gaertner, Mohamed Bourennane, Christian Kurtsiefer +2
We introduce a new quantum protocol for solving detectable Byzantine agreement (also called detectable broadcast) between three parties, and also for solving the detectable liar de…
Optical polarizabilities of large molecules measured in near-field interferometry
Lucia Hackermueller, Klaus Hornberger, Stefan Gerlich +3
We discuss a novel application of matter wave interferometry to characterize the scalar optical polarizability of molecules at 532 nm. The interferometer presented here consists of…
Cavity cooling of translational and ro-vibrational motion of molecules: ab initio-based simulations for OH and NO
Markus Kowalewski, Giovanna Morigi, Pepijn W. H. Pinkse +1
We present detailed calculations at the basis of our recent proposal for simultaneous cooling the rotational, vibrational and external molecular degrees of freedom. In this method,…
Strong dispersive coupling of a high finesse cavity to a micromechanical membrane
J. D. Thompson, B. M. Zwickl, A. M. Jayich +3
Macroscopic mechanical objects and electromagnetic degrees of freedom couple to each other via radiation pressure. Optomechanical systems with sufficiently strong coupling are pred…
Relaxation dynamics of a quantum Brownian particle in an ideal gas
Bassano Vacchini, Klaus Hornberger
We show how the quantum analog of the Fokker-Planck equation for describing Brownian motion can be obtained as the diffusive limit of the quantum linear Boltzmann equation. The lat…
Dirac Cat States in Relativistic Landau Levels
A. Bermudez, M. A. Martin-Delgado, E. Solano
We show that a relativistic version of Schrodinger cat states, here called Dirac cat states, can be built in relativistic Landau levels when an external magnetic field couples to a…
Strong atom-field coupling for Bose-Einstein condensates in an optical cavity on a chip
Yves Colombe, Tilo Steinmetz, Guilhem Dubois +3
An optical cavity enhances the interaction between atoms and light, and the rate of coherent atom-photon coupling can be made larger than all decoherence rates of the system. For s…
Table-top creation of entangled multi-keV photon pairs via the Unruh effect
Ralf Schützhold, Gernot Schaller, Dietrich Habs
Electrons moving in a strong periodic electromagnetic field (e.g., laser or undulator) may convert quantum vacuum fluctuations into pairs of entangled photons, which can be underst…
Selective Control of the Symmetric Dicke Subspace in Trapped Ions
C. E. Lopez, J. C. Retamal, E. Solano
We propose a method of manipulating selectively the symmetric Dicke subspace in the internal degrees of freedom of N trapped ions. We show that the direct access to ionic-motional…
Open quantum dynamics via environmental monitoring
Klaus Hornberger
A general method is discussed to obtain Markovian master equations which describe the interaction with the environment in a microscopic and non-perturbative fashion. It is based on…
Exact Mapping of the 2+1 Dirac Oscillator onto the Jaynes-Cummings Model: Ion-Trap Experimental Proposal
A. Bermudez, M. A. Martin-Delgado, E. Solano
We study the dynamics of the 2+1 Dirac oscillator exactly and find spin oscillations due to a {\it Zitterbewegung} of purely relativistic origin. We find an exact mapping of this q…
Bose-Einstein condensate coupled to a nanomechanical resonator on an atom chip
Philipp Treutlein, David Hunger, Stephan Camerer +2
We theoretically study the coupling of Bose-Einstein condensed atoms to the mechanical oscillations of a nanoscale cantilever with a magnetic tip. This is an experimentally viable…
Cavity cooling of internal molecular motion
Giovanna Morigi, Pepijn W. H. Pinkse, Markus Kowalewski +1
We predict that it is possible to cool rotational, vibrational and translational degrees of freedom of molecules by coupling a molecular dipole transition to an optical cavity. The…
Generation of Symmetric Dicke States of Remote Qubits with Linear Optics
C. Thiel, J. von Zanthier, T. Bastin +2
We propose a method for generating all symmetric Dicke states, either in the long-lived internal levels of N massive particles or in the polarization degrees of freedom of photonic…
Strongly-Driven One-Atom Laser and Decoherence Monitoring
P. Lougovski, F. Casagrande, A. Lulli +1
We propose the implementation of a strongly-driven one-atom laser, based on the off-resonant interaction of a three-level atom in -configuration with a single cavity mode and th…
High-speed linear optics quantum computing using active feed-forward
Robert Prevedel, Philip Walther, Felix Tiefenbacher +4
As information carriers in quantum computing, photonic qubits have the advantage of undergoing negligible decoherence. However, the absence of any significant photon-photon interac…
Dirac Equation and Quantum Relativistic Effects in a Single Trapped Ion
L. Lamata, J. Leon, T. Schaetz +1
We present a method of simulating the Dirac equation in 3+1 dimensions for a free spin-1/2 particle in a single trapped ion. The Dirac bispinor is represented by four ionic interna…
Quantum Dynamics with Bohmian Trajectories
D. -A. Deckert, D. Duerr, P. Pickl
We describe the advantages and disadvantages of numerical methods when Bohmian trajectory-grids are used for numerical simulations of quantum dynamics. We focus on the crucial non…
Using quantum key distribution for cryptographic purposes: a survey
Romain Alléaume, Cyril Branciard, Jan Bouda +20
The appealing feature of quantum key distribution (QKD), from a cryptographic viewpoint, is the ability to prove the information-theoretic security (ITS) of the established keys. A…