Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Max Planck SocietyDE1.5k papers
- Leibniz University HannoverDE902 papers
- California Institute of TechnologyUS583 papers
- Centre National de la Recherche ScientifiqueFR534 papers
- University of BirminghamGB417 papers
- Pennsylvania State UniversityUS402 papers
- University of Maryland, College ParkUS398 papers
- Louisiana State UniversityUS394 papers
- University of Wisconsin–MilwaukeeUS390 papers
- Cardiff UniversityGB371 papers
- University of GlasgowGB367 papers
- Goddard Space Flight CenterUS340 papers
13 papers · 2 filters
Weak-signal conversion from 1550nm to 532nm with 84% efficiency
Aiko Samblowski, Christina E. Vollmer, Christoph Baune +2
We report on the experimental frequency conversion of a dim, coherent continuous-wave light field from 1550nm to 532nm with an external photon-number conversion efficiency of (84.4…
Laser Theory for Optomechanics: Limit Cycles in the Quantum Regime
Niels Lörch, Jiang Qian, Aashish Clerk +2
Optomechanical systems can exhibit self-sustained limit cycles where the quantum state of the mechanical resonator possesses nonclassical characteristics such as a strongly negativ…
Enhancing the sensitivity of the LIGO gravitational wave detector by using squeezed states of light
The LIGO Scientific Collaboration
Nearly a century after Einstein first predicted the existence of gravitational waves, a global network of earth-based gravitational wave observatories is seeking to directly detect…
Locality of temperature
M. Kliesch, C. Gogolin, M. J. Kastoryano +2
This work is concerned with thermal quantum states of Hamiltonians on spin and fermionic lattice systems with short range interactions. We provide results leading to a local defini…
Impact of backscattered light in a squeezing-enhanced interferometric gravitational-wave detector
S. S. Y. Chua, S. Dwyer, L. Barsotti +20
Squeezed states of light have been recently used to improve the sensitivity of laser interferometric gravitational-wave detectors beyond the quantum limit. To completely establish…
Fundamental quantum interferometry bound for the squeezed-light-enhanced gravitational-wave detector GEO600
Rafal Demkowicz-Dobrzanski, Konrad Banaszek, Roman Schnabel
The fundamental quantum interferometry bound limits the sensitivity of an interferometer for a given total rate of photons and for a given decoherence rate inside the measurement d…
Stable control of 10 dB two-mode squeezed vacuum states of light
Tobias Eberle, Vitus Händchen, Roman Schnabel
Continuous variable entanglement is a fundamental resource for many quantum information tasks. Important protocols like superactivation of zero-capacity channels and finite-size qu…
Quantum Teleportation of Dynamics and Effective Interactions Between Remote Systems
Christine A. Muschik, Klemens Hammerer, Eugene S. Polzik +1
Most protocols for Quantum Information Processing consist of a series of quantum gates, which are applied sequentially. In contrast, interactions, for example between matter and fi…
Experimental entanglement distribution by separable states
Christina E. Vollmer, Daniela Schulze, Tobias Eberle +3
The distribution of entanglement between macroscopically separated parties represents a crucial protocol for future quantum information networks. Surprisingly, it has been theoreti…
Tunneling in cosine potential with periodic boundary conditions
Zbigniew Ambrozinski
In this paper we discuss three methods to calculate energy splitting in cosine potential on a circle, Bloch waves, semi--classical approximation and restricted basis approach. Whil…
Dissipative versus Conditional Generation of Gaussian Entanglement and Spin Squeezing
Denis V. Vasilyev, Christine A. Muschik, Klemens Hammerer
Spin squeezing of collective atomic spins can be achieved conditionally via probing with light and subsequent homodyne detection, as is done in a Quantum Nondemolition measurement.…
High-bandwidth squeezed light at 1550 nm from a compact monolithic PPKTP cavity
Stefan Ast, Moritz Mehmet, Roman Schnabel
We report the generation of squeezed vacuum states of light at 1550 nm with a broadband quantum noise reduction of up to 4.8 dB ranging from 5 MHz to 1.2 GHz sideband frequency. We…
Cavity-Enhanced Long-Distance Coupling of an Atomic Ensemble to a Micromechanical Membrane
B. Vogell, K. Stannigel, P. Zoller +5
We discuss a hybrid quantum system where a dielectric membrane situated inside an optical cavity is coupled to a distant atomic ensemble trapped in an optical lattice. The coupling…