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Author |
Sels, D.; Brosens, F.; Magnus, W. |
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Title |
On the path integral representation of the Wigner function and the BarkerMurray ansatz |
Type |
A1 Journal article |
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Year  |
2012 |
Publication |
Physics letters : A |
Abbreviated Journal |
Phys Lett A |
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Volume |
376 |
Issue |
6/7 |
Pages |
809-812 |
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Keywords |
A1 Journal article; Theory of quantum systems and complex systems; Condensed Matter Theory (CMT) |
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Abstract |
The propagator of the Wigner function is constructed from the WignerLiouville equation as a phase space path integral over a new effective Lagrangian. In contrast to a paper by Barker and Murray (1983) [1], we show that the path integral can in general not be written as a linear superposition of classical phase space trajectories over a family of non-local forces. Instead, we adopt a saddle point expansion to show that the semiclassical Wigner function is a linear superposition of classical solutions for a different set of non-local time dependent forces. As shown by a simple example the specific form of the path integral makes the formulation ideal for Monte Carlo simulation. |
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Publisher |
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Place of Publication |
Amsterdam |
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Wos |
000301167300005 |
Publication Date |
2012-01-17 |
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Series Editor |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0375-9601; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
1.772 |
Times cited |
7 |
Open Access |
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Notes |
; ; |
Approved |
Most recent IF: 1.772; 2012 IF: 1.766 |
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Call Number |
UA @ lucian @ c:irua:94006 |
Serial |
2445 |
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Author |
Lamoen, D.; March, N.H. |
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Title |
Orientational disorder in some molecular solids in relation to the boson peak in glasses |
Type |
A1 Journal article |
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Year |
2009 |
Publication |
Physics letters : A |
Abbreviated Journal |
Phys Lett A |
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Volume |
373 |
Issue |
7 |
Pages |
799-800 |
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Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
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Abstract |
Orientational disorder in some molecular solids is discussed in relation to the emphasis placed on transverse vibrational modes in glasses as the origin of the observed boson peak in two very recent contributions in Nature Materials. In particular, facts are here presented for (i) CH4, (ii) C60 and (iii) ethanol in their solid phases for (a) specific heat and (b) neutron scattering. The results for ethanol in particular do not fit in with the interpretation of the boson peak in terms of transverse acoustic phonons in disordered systems. Glasses will therefore have to be separated into at least two classes where the physical interpretation of the boson peak is concerned. |
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Place of Publication |
Amsterdam |
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Wos |
000263515500020 |
Publication Date |
2009-01-09 |
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Series Editor |
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Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0375-9601; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
1.772 |
Times cited |
3 |
Open Access |
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Notes |
Bof |
Approved |
Most recent IF: 1.772; 2009 IF: 2.009 |
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Call Number |
UA @ lucian @ c:irua:72917 |
Serial |
2516 |
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Author |
Rouaiguia, L.; Djebli, M.; Peeters, F. |
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Title |
Random charge fluctuation effect on strongly correlated dust particles confined in two dimensions |
Type |
A1 Journal article |
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Year |
2008 |
Publication |
Physics letters : A |
Abbreviated Journal |
Phys Lett A |
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Volume |
372 |
Issue |
24 |
Pages |
4487-4492 |
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Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
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Abstract |
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Place of Publication |
Amsterdam |
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Wos |
000257203700030 |
Publication Date |
2008-04-17 |
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Series Issue |
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Edition |
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ISSN |
0375-9601; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
1.772 |
Times cited |
4 |
Open Access |
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Notes |
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Approved |
Most recent IF: 1.772; 2008 IF: 2.174 |
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Call Number |
UA @ lucian @ c:irua:69627 |
Serial |
2809 |
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Author |
Shanenko, A.A.; Ivanov, V.A. |
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Title |
Effects of confining interaction in meso-superconductors |
Type |
A1 Journal article |
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Year |
2004 |
Publication |
Physics letters : A |
Abbreviated Journal |
Phys Lett A |
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Volume |
322 |
Issue |
5-6 |
Pages |
384-389 |
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Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
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Abstract |
This Letter presents a generalized Ginzburg-Landau equation for the superconducting order parameter which includes the terms resulting from the confining interaction associated with the specimen boundary. While the original Ginzburg-Landau theory had been developed for a bulk superconductor, this generalization is meant for study of a meso-superconductor. (C) 2004 Elsevier B.V. All rights reserved. |
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Publisher |
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Place of Publication |
Amsterdam |
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Language |
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Wos |
000220123600018 |
Publication Date |
2004-02-05 |
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Edition |
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ISSN |
0375-9601; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
1.772 |
Times cited |
1 |
Open Access |
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Notes |
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Approved |
Most recent IF: 1.772; 2004 IF: 1.454 |
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Call Number |
UA @ lucian @ c:irua:103244 |
Serial |
859 |
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Author |
Kukhlevsky, S.V.; Mechler, M.; Csapo, L.; Janssens, K. |
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Title |
Near-field diffraction of fs and sub-fs pulses: super resolution of NSOM in space and time |
Type |
A1 Journal article |
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Year |
2003 |
Publication |
Physics letters : A |
Abbreviated Journal |
Phys Lett A |
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Volume |
319 |
Issue |
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Pages |
439-447 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Place of Publication |
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Wos |
000187351800003 |
Publication Date |
2003-11-07 |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0375-9601 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
1.772 |
Times cited |
10 |
Open Access |
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Notes |
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Approved |
Most recent IF: 1.772; 2003 IF: 1.324 |
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Call Number |
UA @ admin @ c:irua:42959 |
Serial |
5744 |
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