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
16 papers · 2 filters
Relativity and Lorentz Invariance of Entanglement Distillability
L. Lamata, M. A. Martin-Delgado, E. Solano
We study entanglement distillability of bipartite mixed spin states under Wigner rotations induced by Lorentz transformations. We define weak and strong criteria for relativistic i…
Analysis of a single-atom dipole trap
Markus Weber, Juergen Volz, Karen Saucke +2
We describe a simple experimental technique which allows to store a single Rubidium 87 atom in an optical dipole trap. Due to light-induced two-body collisions during the loading s…
Geometric phase for open quantum systems and stochastic unravellings
A. Bassi, E. Ippoliti
We analyze the geometric phase for an open quantum system when computed by resorting to a stochastic unravelling of the reduced density matrix (quantum jump approach or stochastic…
A microscopic derivation of the quantum mechanical formal scattering cross section
D. Dürr, S. Goldstein, T. Moser +1
We prove that the empirical distribution of crossings of a "detector'' surface by scattered particles converges in appropriate limits to the scattering cross section computed by st…
Experimental Analysis of a 4-Qubit Cluster State
Nikolai Kiesel, Christian Schmid, Ulrich Weber +4
Linear optics quantum logic operations enabled the observation of a four-photon cluster state. We prove genuine four-partite entanglement and study its persistency, demonstrating r…
Macroscopic Einstein-Podolsky-Rosen pairs in superconducting circuits
L. F. Wei, Yu-xi Liu, Markus J. Storcz +1
We propose an efficient approach to prepare Einstein-Podolsky-Rosen (EPR) pairs in currently existing Josephson nanocircuits with capacitive couplings. In these fixed coupling circ…
Linear Optics C-Phase gate made simple
Nikolai Kiesel, Christian Schmid, Ulrich Weber +2
Linear optics quantum logic gates are the best tool to generate multi-photon entanglement. Simplifying a recent approach [Phys. Rev. A 65, 062324; Phys. Rev. A 66, 024308] we were…
Quantum Mechanics in Multiply-Connected Spaces
Detlef Duerr, Sheldon Goldstein, James Taylor +2
We explain why, in a configuration space that is multiply connected, i.e., whose fundamental group is nontrivial, there are several quantum theories, corresponding to different cho…
Indistinguishable Photons from a Single Molecule
A. Kiraz, M. Ehrl, Th. Hellerer +3
We report the results of coincidence counting experiments at the output of a Michelson interferometer using the zero-phonon-line emission of a single molecule at . Under con…
Optimal Control of Coupled Josephson Qubits
A. K. Spoerl, T. Schulte-Herbrueggen, S. J. Glaser +4
Quantum optimal control theory is applied to two and three coupled Josephson charge qubits. It is shown that by using shaped pulses a CNOT gate can be obtained with a trace fidelit…
Possibility, Impossibility and Cheat-Sensitivity of Quantum Bit String Commitment
Harry Buhrman, Matthias Christandl, Patrick Hayden +2
Unconditionally secure non-relativistic bit commitment is known to be impossible in both the classical and the quantum worlds. But when committing to a string of n bits at once, ho…
Attosecond double-slit experiment
F. Lindner, M. G. Schaetzel, H. Walther +7
A new scheme for a double-slit experiment in the time domain is presented. Phase-stabilized few-cycle laser pulses open one to two windows (``slits'') of attosecond duration for ph…
Experimental One-Way Quantum Computing
P. Walther, K. J. Resch, T. Rudolph +5
Standard quantum computation is based on sequences of unitary quantum logic gates which process qubits. The one-way quantum computer proposed by Raussendorf and Briegel is entirely…
Single Qubit Quantum Secret Sharing
Christian Schmid, Pavel Trojek, Harald Weinfurter +3
We present a simple and practical protocol for the solution of a secure multiparty communication task, the secret sharing, and its experimental realization. In this protocol, a sec…
Experimental quantum communication complexity
Pavel Trojek, Christian Schmid, Mohamed Bourennane +3
We prove that the fidelity of two exemplary communication complexity protocols, allowing for an N-1 bit communication, can be exponentially improved by N-1 (unentangled) qubit comm…
Distributing entanglement and single photons through an intra-city, free-space quantum channel
K. J. Resch, M. Lindenthal, B. Blauensteiner +11
We have distributed entangled photons directly through the atmosphere to a receiver station 7.8 km away over the city of Vienna, Austria at night. Detection of one photon from our…