Results 41 to 50 of about 285,524 (264)

Some Notes on Counterfactuals in Quantum Mechanics

Entropy, 2020
Counterfactuals, i.e., events that could have occurred but eventually did not, play a unique role in quantum mechanics in that they exert causal effects despite their non-occurrence.
Avshalom C. Elitzur, Eliahu Cohen
doaj   +1 more source

The Weak Reality That Makes Quantum Phenomena More Natural: Novel Insights and Experiments

Entropy, 2018
While quantum reality can be probed through measurements, the Two-State Vector Formalism (TSVF) reveals a subtler reality prevailing between measurements. Under special pre- and post-selections, odd physical values emerge.
Yakir Aharonov, Eliahu Cohen, Mordecai Waegell, Avshalom C. Elitzur   +3 more
doaj   +1 more source

Dimensionality of random light fields

Journal of the European Optical Society-Rapid Publications, 2017
Background The spectral polarization state and dimensionality of random light are important concepts in modern optical physics and photonics. Methods By use of space-frequency domain coherence theory, we establish a rigorous classification for the ...
Andreas Norrman, Ari T. Friberg, José J. Gil, Tero Setälä   +3 more
doaj   +1 more source

Casimir-Polder effect for a plane with Chern-Simons interaction [PDF]

, 2010
A novel formalism for the evaluation of the Casimir-Polder potential in an arbitrary gauge of vector potentials is introduced. The ground state energy of a neutral atom in the presence of an infinite two-dimensional plane with Chern-Simons interaction is
Marachevsky, Valery N., Pis'mak, Yury M.
core   +1 more source

Protective Measurements

, 1994
Protective measurements yield properties of the quantum state of a single quantum system without affecting the quantum state. A protective measurement involves adiabatic coupling to the measuring device together with a procedure to protect the state from
Aharonov, Aharonov, Aharonov, Aharonov, Aharonov, Aharonov, Aharonov, Aharonov, Aharonov, Rovelli, Unruh, Vaidman, Vaidman   +12 more
core   +1 more source

Quantum control and measurement of atomic spins in polarization spectroscopy [PDF]

, 2009
Quantum control and measurement are two sides of the same coin. To affect a dynamical map, well-designed time-dependent control fields must be applied to the system of interest.
Appel, Barnett, Black, Chaudhury, Chaudhury, Choi, Chou, Cohen-Tannoudji, Cohen-Tannoudji, Dalibard, de Echaniz, de Echaniz, Deutsch, D’Alessandro, Eckert, Eckert, Eisaman, Geremia, Hald, Happer, Happer, Hsieh, Itano, Ivan H. Deutsch, Julsgaard, Julsgaard, Kastler, Kitagawa, Kubasik, Kuzmich, Kuzmich, Kuzmich, Liu, Loudon, Madsen, Manuel, Matsukevich, Merkel, Moler, Moore, Nielsen, Paris, Poul S. Jessen, Rabitz, Rose, Sanders, Shen, Silberfarb, Silberfarb, Smith, Smith, Smith, Tanji, Vandenberghe, Wiseman, Zhao   +55 more
core   +1 more source

Super-gauge Field in de Sitter Universe

, 2016
The Gupta-Bleuler triplet for vector-spinor gauge field is presented in de Sitter ambient space formalism. The invariant space of field equation solutions is obtained with respect to an indecomposable representation of the de Sitter group.
Enayati, M., Parsamehr, S., Takook, M. V.   +2 more
core   +1 more source

Inclusive Decay Distributions of Coherent Two-body States [PDF]

, 1997
When a vector meson such as phi, J/\Psi(3S) or Upsilon(4S) decays to a particle-antiparticle pair of neutral mesons, the time distribution of inclusive decay to a given final state is naively expected to be the incoherent sum of those of the two mesons ...
Yamamoto, Hitoshi
core   +2 more sources

Interaction of moving D-branes on orbifolds [PDF]

, 1997
We use the boundary state formalism to study the interaction of two moving identical D-branes in the Type II superstring theory compactified on orbifolds.
Bachas, Bachas, Bachas, Billó, Callan, Carmen Núñez, Claudio A. Scrucca, Danielsson, Dobaisch, Douglas, Douglas, Faheem Hussain, Horowitz, Hussain, Johnson, Kabat, Lifschytz, Minahan, Polchinski, Polchinski, Pollard, Roberto Iengo, Schwarz, Schwarz, Shenker, Stelle, Strominger, Witten   +27 more
core   +2 more sources

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar, Jorge Marqués‐Marchán, Sara Catalano, Agustina Asenjo, Michael Foerster, Miguel Angel Niño, Manuel Vazquez, Fèlix Casanova, Arantxa Fraile Rodríguez, Rafael P. Del Real, Oksana Chubykalo‐Fesenko, Cristina Bran   +11 more
wiley   +1 more source