Results 21 to 30 of about 125,563 (231)

Scattering Theory for Open Quantum Systems [PDF]

, 2006
Quantum systems which interact with their environment are often modeled by maximal dissipative operators or so-called Pseudo-Hamiltonians. In this paper the scattering theory for such open systems is considered.
Behrndt, J., Malamud, M. M., Neidhardt, H.   +2 more
core   +2 more sources

Vertex Operators and Scattering Amplitudes of the Bosonic Open String Theory in the Linear Dilaton Background

, 2009
73 pages, no ...
Chan, Chuan-Tsung, Chen, Wei-Ming
openaire   +2 more sources

Consistency of the standard model effective field theory

Journal of High Energy Physics, 2019
We derive bounds on couplings in the standard model effective field theory (SMEFT) as a consequence of causality and the analytic structure of scattering amplitudes.
Grant N. Remmen, Nicholas L. Rodd
doaj   +1 more source

Ginsparg-Wilson Pions Scattering in a Sea of Staggered Quarks [PDF]

, 2006
We calculate isospin 2 pion-pion scattering in chiral perturbation theory for a partially quenched, mixed action theory with Ginsparg-Wilson valence quarks and staggered sea quarks.
André Walker-Loud, Donal O’Connell, J. A. Bailey, Jiunn-Wei Chen, K. C. Bowler, M. Golterman, Ruth Van de Water, S. Durr, S. R. Beane   +8 more
core   +2 more sources

Dynamics near the origin of the long range scattering for the one-dimensional Schrödinger equation

Comptes Rendus. Mathématique
We consider the cubic Schrödinger equation on the line, for which the scattering theory requires modifications due to long range effects. We revisit the construction of the modified wave operator, and recall the construction of its inverse, in order to ...
Carles, Rémi
doaj   +1 more source

Scattering Matrix Theory For Nonlinear Transport [PDF]

, 1997
We report a scattering matrix theory for dynamic and nonlinear transport in coherent mesoscopic conductors. In general this theory allows predictions of low frequency linear dynamic conductance, as well as weakly nonlinear DC conductance.
C. Bruder, D. S. Fisher, H. Pastawski, Hong Guo, J. B. Pieper, J. Liu, J. Wang, Jian Wang, Jian Wang, M. Büttiker, M. Büttiker, M. Büttiker, M. Büttiker, M. Büttiker, M. Büttiker, M. K. Yip, N. S. Wingreen, P. G. N. de Vegvar, P. G. N. de Vegvar, R. A. Webb, R. Landauer, R. Landauer, S. Datta, T. Christen, T. Ivanov, T. K. Ng, V. Gasparian, W. Chen, Zhong-shui Ma   +28 more
core   +2 more sources

Positivity constraints on aQGC: carving out the physical parameter space

Journal of High Energy Physics, 2019
Searching for deviations in quartic gauge boson couplings (QGCs) is one of the main goals of the electroweak program at the LHC. We consider positivity bounds adapted to the Standard Model, and show that a set of positivity constraints on 18 anomalous ...
Qi Bi, Cen Zhang, Shuang-Yong Zhou
doaj   +1 more source

On stable higher spin states in Heterotic String Theories

, 2010
We study properties of 1/2 BPS Higher Spin states in heterotic compactifications with extended supersymmetry. We also analyze non BPS Higher Spin states and give explicit expressions for physical vertex operators of the first two massive levels.
A Dabholkar, A Fotopoulos, A Fotopoulos, A Hanany, A Klemm, A Sagnotti, A Sen, C Angelantonj, C Bachas, D Chialva, D Chialva, D Chialva, D Chialva, D Lüst, DJ Gross, DJ Gross, E Dudas, E Kiritsis, E Witten, G D’Appollonio, H Elvang, I Antoniadis, I Bena, I Bena, IG Koh, JG Russo, K Benakli, KS Narain, LA Anchordoqui, Luca Lopez, M Bianchi, M Bianchi, M Bianchi, M Bianchi, M Bianchi, M Bianchi, M Cvetič, M Cvetič, Massimo Bianchi, N Arkani-Hamed, N Beisert, N Beisert, N Iizuka, R Iengo, Robert Richter, S Chaudhuri, S Ferrara, SY Choi, W-Z Feng, Y Tanii, YM Zinoviev, Z Dong   +51 more
core   +1 more source

Kirchhoff's Rule for Quantum Wires. II: The Inverse Problem with Possible Applications to Quantum Computers

, 1999
In this article we continue our investigations of one particle quantum scattering theory for Schroedinger operators on a set of connected (idealized one-dimensional) wires forming a graph with an arbitrary number of open ends. The Hamiltonian is given as
Kostrykin, Vadim, Schrader, Robert
core   +1 more source

Scattering States and Symmetries in the Matrix Model and Two Dimensional String Theory [PDF]

, 1992
We study the correspondence between the linear matrix model and the interacting nonlinear string theory. Starting from the simple matrix harmonic oscillator states, we derive in a direct way scattering amplitudes of 2-dimensional strings, exhibiting the ...
AndréJ. van Tonder, Antal Jevicki, Avan, Avan, Blau, Brézin, Brézin, Danielsson, Das, Das, de Beer, Demeterfi, Demeterfi, Demeterfi, Douglas, Ginsparg, Green, Gross, Gross, Gross, Gross, Jevicki, João P. Rodrigues, Klebanov, Klebanov, Klebanov, Kusatov, Matsumura, Minic, Moore, Moore, Moore, Morozov, Polchinski, Polyakov, Rodrigues, Sakai, Sengupta, Witten   +38 more
core   +2 more sources