Nonlinear momentum relaxation of an impurity in a harmonic chain

1975 ◽  
Vol 13 (5) ◽  
pp. 427-449 ◽  
Author(s):  
James T. Hynes ◽  
Raymond Kapral ◽  
Michael Weinberg
Keyword(s):  
Harmonic Chain ◽  
Momentum Relaxation

scholarly journals Excited state Rényi entropy and subsystem distance in two-dimensional non-compact bosonic theory. Part I. Single-particle states

2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
Jiaju Zhang ◽  
M.A. Rajabpour
Keyword(s):  
Excited States ◽  
Single Particle ◽  
Renyi Entropy ◽  
Rényi Entropy ◽  
Large Momentum ◽  
Particle State ◽  
Two Dimensional ◽  
Universal Form ◽  
Conformal Field ◽  
Harmonic Chain

Abstract We investigate the Rényi entropy of the excited states produced by the current and its derivatives in the two-dimensional free massless non-compact bosonic theory, which is a two-dimensional conformal field theory. We also study the subsystem Schatten distance between these states. The two-dimensional free massless non-compact bosonic theory is the continuum limit of the finite periodic gapless harmonic chains with the local interactions. We identify the excited states produced by current and its derivatives in the massless bosonic theory as the single-particle excited states in the gapless harmonic chain. We calculate analytically the second Rényi entropy and the second Schatten distance in the massless bosonic theory. We then use the wave functions of the excited states and calculate the second Rényi entropy and the second Schatten distance in the gapless limit of the harmonic chain, which match perfectly with the analytical results in the massless bosonic theory. We verify that in the large momentum limit the single-particle state Rényi entropy takes a universal form. We also show that in the limit of large momenta and large momentum difference the subsystem Schatten distance takes a universal form but it is replaced by a new corrected form when the momentum difference is small. Finally we also comment on the mutual Rényi entropy of two disjoint intervals in the excited states of the two-dimensional free non-compact bosonic theory.

Energy and momentum relaxation of hot electrons in GaN/AlGaN

2002 ◽  
Vol 14 (13) ◽  
pp. 3457-3468 ◽  
Author(s):  
N Balkan ◽  
M C Arikan ◽  
S Gokden ◽  
V Tilak ◽  
B Schaff ◽  
...  
Keyword(s):  
Hot Electrons ◽  
Momentum Relaxation ◽  
Energy And Momentum

Momentum relaxation of 2D electron gas due to near-surface acoustic phonon scattering

1999 ◽  
Vol 270 (3-4) ◽  
pp. 280-288 ◽  
Author(s):  
V.I. Pipa ◽  
N.Z. Vagidov ◽  
V.V. Mitin ◽  
M. Stroscio
Keyword(s):  
Acoustic Phonon ◽  
Phonon Scattering ◽  
Electron Gas ◽  
Near Surface ◽  
2D Electron Gas ◽  
Momentum Relaxation

scholarly journals Electron spin relaxation and momentum relaxation in semiconductor quantum wells

2006 ◽  
Vol 55 (6) ◽  
pp. 2961
Author(s):  
Wu Yu ◽  
Jiao Zhong-Xing ◽  
Lei Liang ◽  
Wen Jin-Hui ◽  
Lai Tian-Shu ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Spin Relaxation ◽  
Electron Spin ◽  
Electron Spin Relaxation ◽  
Semiconductor Quantum Wells ◽  
Momentum Relaxation
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