Results 51 to 60 of about 464,290 (281)

Recent progress in computing four-loop massive correlators [PDF]

, 2006
We report about recent progress in computing four-loop massive correlators. The expansion of these correlators in the external momentum leads to vacuum integrals.
Appelquist, Bernreuther, Bernreuther, Broadhurst, Broadhurst, C. Sturm, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Czakon, Davier, Faisst, Fleischer, Fleischer, Grozin, J.H. Kühn, K.G. Chetyrkin, Kuhn, Laporta, Laporta, Lewis, Mastrolia, Schröder, Schröder, Steinhauser, van Ritbergen, Vermaseren, Vermaseren, Weinberg, Wetzel   +32 more
core   +3 more sources

Radiation reaction in quantum vacuum [PDF]

Progress of Theoretical and Experimental Physics, 2015
From the development of the electron theory by H. A. Lorentz in 1906, many authors have tried to reformulate this model named "radiation reaction". P. A. M. Dirac derived the relativistic-classical electron model in 1938, which is now called the Lorentz-Abraham-Dirac model. But this model has the big difficulty of the run-away solution.
openaire   +2 more sources

Ultra-High Vacuum Cells Realized by Miniature Ion Pump Using High-Efficiency Plasma Source

Sensors
In recent years, there has been significant interest in quantum technology, characterized by the emergence of quantum computers boasting immense processing power, ultra-sensitive quantum sensors, and ultra-precise atomic clocks.
Yuichi Kurashima, Atsuhiko Maeda, Naoto Oshima, Taisei Motomura, Takashi Matsumae, Mitsuhiro Watanabe, Hideki Takagi   +6 more
doaj   +1 more source

A Covariant Canonical Quantization of General Relativity

Advances in High Energy Physics, 2018
A Hamiltonian formulation of General Relativity within the context of the Nexus Paradigm of quantum gravity is presented. We show that the Ricci flow in a compact matter free manifold serves as the Hamiltonian density of the vacuum as well as a time ...
Stuart Marongwe
doaj   +1 more source

Wading through the void: Exploring quantum friction and nonequilibrium fluctuations

APL Photonics, 2022
When two or more objects move relative to one another in vacuum, they experience a drag force, which, at zero temperature, usually goes under the name of quantum friction.
D. Reiche, F. Intravaia, K. Busch
doaj   +1 more source

Construction of the Pauli-Villars-regulated Dirac vacuum in electromagnetic fields [PDF]

, 2012
Using the Pauli-Villars regularization and arguments from convex analysis, we construct solutions to the classical time-independent Maxwell equations in Dirac's vacuum, in the presence of small external electromagnetic sources. The vacuum is not an empty
C. Hainzl, C. Hainzl, C. Hainzl, C. Hainzl, C. Hainzl, Christian Hainzl, D.A. Slavnov, D.A. Slavnov, D.A. Slavnov, E. Seiler, E. Uehling, F. Della Valle, F. Finster, G. Leibbrandt, H. Euler, H. Euler, J. Schwinger, J.C. Ward, M.J. Esteban, Mathieu Lewin, P. Chaix, P. Chaix, P. Gravejat, P. Gravejat, P.A. Dirac, P.A. Dirac, Philippe Gravejat, R. Karplus, R. Serber, V. Bach, V. Bach, V. Weisskopf, W. Furry, W. Greiner, W. Heisenberg, W. Pauli, W.M. Frank, Éric Séré   +37 more
core   +3 more sources

Fluctuations in the quantum vacuum [PDF]

Chaos, Solitons & Fractals, 2002
We argue that it is a fluctuational underpinning of the Quantum vacuum which on the one hand gives a stochastic character to the conservation laws, and on the other is required for explaining the recently observed acceleration of the universe. This also provides us with the arrow of time, in a consistent cosmology.
openaire   +2 more sources

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

General method to synthesize aggregation‐induced emission molecules via carbon‐sulfur bond activation

Aggregate
Poly‐substituted olefins, one of the most important aggregation‐induced emission luminogens (AIEgens), have garnered significant attention due to their various applications in chemical‐ and bio‐sensing, bio‐imaging, and opto‐electronics.
Bowei Ma, Xinyu Liang, Gu Xu, Guanghao Zhang, Lutang Zhao, Liangzhuo Ma, Wenbin Xie, Xiang Li, Qinqin Shi, Kaikai Wen, Hui Huang   +10 more
doaj   +1 more source

Local model of entangled photon experiments compatible with quantum predictions based on the reality of the vacuum fields

, 2020
Arguments are provided for the reality of the quantum vacuum fields. A polarization correlation experiment with two maximally entangled photons created by spontaneous parametric down-conversion is studied in the Weyl-Wigner formalism, that reproduces the
Santos, Emilio
core   +1 more source