On the Use of Time Reversal in Crystal‐Field Problems

1964 ◽  
Vol 41 (3) ◽  
pp. 899-900 ◽  
Author(s):  
Jon T. Hougen
Keyword(s):  
Crystal Field ◽  
Time Reversal ◽  
Use Of Time

The use of time reversal methods with Lamb waves to identify structural damage in a pipeline system

2006 ◽  
Author(s):  
Andrew B. Thien ◽  
Anthony D. Puckett ◽  
Gyuhae Park ◽  
Charles R. Farrar
Keyword(s):  
Time Reversal ◽  
Structural Damage ◽  
Lamb Waves ◽  
Pipeline System ◽  
Use Of Time

Space-group operations and time-reversal for a Dirac electron in a crystal field

1958 ◽  
Vol 243 (1235) ◽  
pp. 546-554 ◽  
Keyword(s):  
Dirac Equation ◽  
Crystal Field ◽  
Time Reversal ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Band Theory ◽  
Space Group ◽  
Basic Formalism ◽  
Dirac Electron

It is shown in the first part how the basic formalism of the theory of spin-orbit coupling in the band theory of crystals can be deduced at once from the Dirac equation without the usual ambiguities over improper rotations associated with the formalism based on the Pauli-Schrödinger equation. In the second part it is shown that the original proofs of the time-reversal theorems given by Wigner are unnecessarily complicated.

scholarly journals On the Joint Use of Time Reversal and POPS-OFDM for 5G Systems

2017 ◽  
Author(s):  
Wafa Khrouf ◽  
Zeineb Hraiech ◽  
Fatma Abdelkefi ◽  
Mohamed Siala ◽  
Matthieu Crussiere
Keyword(s):  
Time Reversal ◽  
Use Of Time ◽  
5G Systems

scholarly journals Probing materials damage at various depths by use of Time Reversal Elastic Nonlinearity Diagnostic: Application to concrete.

2012 ◽  
Author(s):  
Cedric Payan ◽  
T. J. Ulrich ◽  
Pierre-Yves Le Bas ◽  
Tarik Saleh ◽  
M. Guimaraes
Keyword(s):  
Time Reversal ◽  
Diagnostic Application ◽  
Use Of Time ◽  
Elastic Nonlinearity

The potential use of time reversal techniques in multiple element antenna systems

2005 ◽  
Vol 9 (1) ◽  
pp. 40-42 ◽  
Author(s):  
H.T. Nguyen ◽  
J.B. Andersen ◽  
G.F. Pedersen
Keyword(s):  
Time Reversal ◽  
Use Of Time ◽  
Potential Use ◽  
Antenna Systems

The potential use of time reversal techniques in multiple element antenna systems

2005 ◽  
Vol 9 (1) ◽  
pp. 40-42 ◽  
Author(s):  
Hung Tuan Nguyen ◽  
J.B. Andersen ◽  
G.F. Pedersen
Keyword(s):  
Time Reversal ◽  
Use Of Time ◽  
Potential Use ◽  
Antenna Systems

Racah algebra of two-body double-tensor operators

1985 ◽  
Vol 63 (9) ◽  
pp. 1220-1227 ◽  
Author(s):  
J. A. Tuszyński ◽  
R. Chatterjee ◽  
J. M. Dixon
Keyword(s):  
Crystal Field ◽  
Time Reversal ◽  
Numerical Evaluation ◽  
Charge Conjugation ◽  
Matrix Elements ◽  
Irreducible Tensor ◽  
Selection Rules ◽  
Definition Of ◽  
Racah Algebra ◽  
Tensor Operators

Two-body double-tensor (TBDT) operators are introduced in the LS- and jj-coupling schemes following Racah's definition of irreducible tensor operators. These operators are shown to contain well-known one-body double tensors as a subset. The result of applying parity, charge conjugation, and time reversal to the TBDT operators is investigated so as to obtain selection rules for their matrix elements. On the basis of their rotation properties, these Hermitian tensor operators are shown to satisfy an SU(2) algebra, and consequently the Wigner–Eckart theorem is applied to calculate their matrix elements. The derivation of the reduced matrix elements is provided. We show some examples of interactions investigated in the literature that can be represented as TBDT operators. For one such operator, the spin-correlated crystal field, a detailed numerical evaluation of its matrix elements is given.

Focusing by use of time reversal of photoacoustic waves

2006 ◽  
Vol 119 (5) ◽  
pp. 3286-3286
Author(s):  
Emmanuel Bossy ◽  
Gabriel Montaldo ◽  
Jean‐Francois Aubry ◽  
Michael Tanter ◽  
Mathias Fink ◽  
...  
Keyword(s):  
Time Reversal ◽  
Use Of Time
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