scholarly journals Atom ionization by strong laser pulses - gauge invariant description

2013 ◽  
Vol 5 (4) ◽  
Author(s):  
Marcin Sleczka ◽  
Adam Bechler
Keyword(s):  
Laser Pulses ◽  
Gauge Invariant ◽  
Strong Laser ◽  
Invariant Description ◽  
Atom Ionization

scholarly journals Notes on cluster algebras and some all-loop Feynman integrals

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
Song He ◽  
Zhenjie Li ◽  
Qinglin Yang
Keyword(s):  
Configuration Space ◽  
Strong Evidence ◽  
Wilson Loop ◽  
Cluster Algebra ◽  
Cluster Algebras ◽  
Gauge Invariant ◽  
Feynman Integrals ◽  
Cluster Function ◽  
Invariant Description ◽  
Cluster Configuration

Abstract We study cluster algebras for some all-loop Feynman integrals, including box-ladder, penta-box-ladder, and double-penta-ladder integrals. In addition to the well-known box ladder whose symbol alphabet is $$ {D}_2\simeq {A}_1^2 $$ D 2 ≃ A 1 2 , we show that penta-box ladder has an alphabet of D3 ≃ A3 and provide strong evidence that the alphabet of seven-point double-penta ladders can be identified with a D4 cluster algebra. We relate the symbol letters to the u variables of cluster configuration space, which provide a gauge-invariant description of the cluster algebra, and we find various sub-algebras associated with limits of the integrals. We comment on constraints similar to extended-Steinmann relations or cluster adjacency conditions on cluster function spaces. Our study of the symbol and alphabet is based on the recently proposed Wilson-loop d log representation, which allows us to predict higher-loop alphabet recursively; by applying it to certain eight-point and nine-point double-penta ladders, we also find D5 and D6 cluster functions respectively.

Vacuum fluctuations and nuclear quantum optics in strong laser pulses

2007 ◽  
Author(s):  
A. Di Piazza ◽  
K. Z. Hatsagortsyan ◽  
J. Evers ◽  
C. H. Keitel
Keyword(s):  
Quantum Optics ◽  
Laser Pulses ◽  
Vacuum Fluctuations ◽  
Strong Laser

Gauge invariant description of the plasmon in hot QCD

1990 ◽  
Vol 238 (2-4) ◽  
pp. 373-379 ◽  
Author(s):  
Stefano Catani ◽  
Emilio D'Emilio
Keyword(s):  
Gauge Invariant ◽  
Invariant Description

Generation of Highly Charged and Energetic Ions From the Interaction of Strong Laser Pulses with Coinage Metal Clusters

2005 ◽  
Vol 45 (5-6) ◽  
pp. 424-431 ◽  
Author(s):  
P. Radcliffe ◽  
T. Döppner ◽  
M. Schumacher ◽  
S. Teuber ◽  
J. Tiggesbäumker ◽  
...  
Keyword(s):  
Metal Clusters ◽  
Laser Pulses ◽  
Energetic Ions ◽  
Coinage Metal ◽  
Strong Laser

Hot electrons and hard x-ray emission from relativistically strong laser pulses in underdense plasma

1996 ◽  
Author(s):  
Alexander A. Andreev ◽  
V. N. Novikov ◽  
Konstantin Y. Platonov ◽  
A. G. Samsonov
Keyword(s):  
Laser Pulses ◽  
Hot Electrons ◽  
X Ray ◽  
Strong Laser ◽  
Underdense Plasma
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