Results 31 to 40 of about 93,872 (266)
Second sound with ultracold atoms: a brief review
AAPPS Bulletin, 2022 We briefly review the research on second sound in ultracold atomic physics, with emphasis on strongly interacting unitary Fermi gases with infinitely large s-wave scattering length.
Hui Hu, Xing-Can Yao, Xia-Ji Liu
doaj +1 more source
ON LOCAL OBSERVATIONS IN QUANTUM GRAVITY [PDF]
Modern Physics Letters A, 1996 By taking into account both quantum mechanical and general relativistic effects, we derive an equation that describes limitations on the measurability of spacetime distances as defined by a material reference system.
openaire +3 more sources
Observation of Quantum Spin Noise in a 1D Light-Atoms Quantum Interface
Physical Review X, 2018 We observe collective quantum spin states of an ensemble of atoms in a one-dimensional light-atom interface. Strings of hundreds of cesium atoms trapped in the evanescent field of a tapered nanofiber are prepared in a coherent spin state, a superposition
J.-B. Béguin +3 more
doaj +1 more source
Information capacity of a quantum observable [PDF]
Problems of Information Transmission, 2012 13 pages.
openaire +3 more sources
Complementary Observables in Quantum Mechanics [PDF]
Foundations of Physics, 2019 We review the notion of complementarity of observables in quantum mechanics, as formulated and studied by Paul Busch and his colleagues over the years. In addition, we provide further clarification on the operational meaning of the concept, and present several characterisations of complementarity - some of which new - in a unified manner, as a ...
Jukka Kiukas +3 more
openaire +3 more sources
Controlling heat and particle currents in nanodevices by quantum observation
npj Quantum Materials, 2017 THERMOELECTRICS: Observe and control The presence of a quantum observer, acting locally in a thermoelectric nanodevice, is shown to be enough to change its heat and electronic transport path.
Robert Biele +3 more
doaj +1 more source
FEBS Open Bio, EarlyView.Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley +1 more source
Self-testing and certification using trusted quantum inputs
New Journal of Physics, 2020 Device-independent certification of quantum devices is of crucial importance for the development of secure quantum information protocols. So far, the most studied scenario corresponds to a system consisting of different non-characterized devices that ...
Ivan Šupić +3 more
doaj +1 more source
Kybernetes, 2005 PurposeAs any attempts at explaining quantum theory in terms of simple, local “cause‐and‐effect” models have remained unsatisfactory, approaches from the perspectives of systems theory seem called for, which is rich in a variety of more complex understandings of causality.Design/methodology/approachThis paper presents one option for such approaches ...
openaire +3 more sources
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source