Results 21 to 30 of about 4,532 (91)

Vacuum fluctuations for spherical gravitational impulsive waves

, 1998
We propose a method for calculating vacuum fluctuations on the background of a spherical impulsive gravitational wave which results in a finite expression for the vacuum expectation value of the stress-energy tensor.
Aliev A N, Audretsch J, Bilge A H, Birrell N D, Deser S, Enginer Y, Gibbons G W, Gleiser R, Hortascsu M, Hortascsu M, Hortascsu M, Hortascsu M, M Hortaçsu, Nutku Y, Svaiter B F   +14 more
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Strongly Asymmetric Tricriticality of Quenched Random-Field Systems

, 1998
In view of the recently seen dramatic effect of quenched random bonds on tricritical systems, we have conducted a renormalization-group study on the effect of quenched random fields on the tricritical phase diagram of the spin-1 Ising model in $d=3$.
A. Falicov, A. Falicov, A. J. Bray, A. Lopatnikova, A. N. Berker, A. N. Berker, A. N. Berker, A. N. Berker, A. Nihat Berker, Alkan Kabakçıoğlu, K. Hui, K. Hui, M. Aizenman, M. S. Cao, P. Cladis, S. Chen, S. Chen, S. R. McKay   +17 more
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Cumulants associated with geometric phases [PDF]

, 2014
The Berry phase can be obtained by taking the continuous limit of a cyclic product $-\mbox{Im} \ln \prod_{I=0}^{M-1} \langle \Psi_0({\boldsymbol \xi}_I)|\Psi_0({\boldsymbol \xi}_{I+1})\rangle$, resulting in the circuit integral $i \oint \mbox{d ...
Hetényi, Balázs, Yahyavi, Mohammad
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Man’s Attitude to Things

Nova prisutnost, 2019
Teme koje su obrađene u ovom članku od posebne su važnosti uslijed sve veće antropološke krize u trenutnoj geopolitičkoj situaciji. Cilj ovog članka je uvesti kategoriju »objektivnog bitka« u jezik znanosti. Korištene istraživačke metode su: filozofska refleksija, komparativna analiza i logičko-povijesna integracija.
E. Motorina, Lubov, M. Sytnik, Veronica
openaire   +3 more sources

Finite-temperature phase diagram of nonmagnetic impurities in high-temperature superconductors using a d=3 tJ model with quenched disorder

, 2010
We study a quenched disordered d=3 tJ Hamiltonian with static vacancies as a model of nonmagnetic impurities in high-Tc materials. Using a position-space renormalization-group approach, we calculate the evolution of the finite-temperature phase diagram ...
A. A. Migdal, A. A. Migdal, A. Falicov, A. Nihat Berker, Michael Hinczewski   +4 more
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Destruction of the family of steady states in the planar problem of Darcy convection [PDF]

, 2008
The natural convection of incompressible fluid in a porous medium causes for some boundary conditions a strong non-uniqueness in the form of a continuous family of steady states.
Arakawa, B. Karasözen, Bratsun, Glukhov, Govorukhin, Govorukhin, Kantur, Karasözen, Karasözen, Karasözen, Karasözen, Kurakin, Lyubimov, Tsybulin, V.G. Tsybulin, Yudovich, Yudovich, Yudovich   +17 more
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Towers of Function Fields over Non-prime Finite Fields [PDF]

, 2013
Over all non-prime finite fields, we construct some recursive towers of function fields with many rational places. Thus we obtain a substantial improvement on all known lower bounds for Ihara's quantity $A(\ell)$, for $\ell = p^n$ with $p$ prime and $n>3$
Bassa, Alp, Beelen, Peter, Garcia, Arnaldo, Stichtenoth, Henning   +3 more
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Properties of Solutions in 2+1 Dimensions [PDF]

, 2003
We solve the Einstein equations for the 2+1 dimensions with and without scalar fields. We calculate the entropy, Hawking temperature and the emission probabilities for these cases.
A. N. Aliev, Barış Yapışkan, C. Martinez, C. Martinez, E. Abdalla, E. Keski-Vakkuri, E. T. Newman, E. T. Newman, G. Clément, G. S. Hall, Hasan Tuncay Özçelik, J. D. Brown, J. Zinn-Justin, K. C. K. Chan, K. C. K. Chan, K. S. Virbhadra, M. Banados, M. Banados, M. Cataldo, M. Hennaux, M. Hortaçsu, M. Kamara, O. J. C. Dias, O. J. C. Dias, O. J. C. Dias, P. Kraus, P. Kraus, S. Deser, S. Deser, S. Deser, S. Fernando   +30 more
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Biodiversitas dan Identifikasi Jamur Basidiomycetes di Taman Nasional Sebangau, Kabupaten Katingan Kalimantan Tengah [PDF]

, 2019
Masyarakat yang tinggal di sekitar hutan, pada umumnya sangat bergantung pada hasil hutan, baik itu hasil hutan berupa kayu maupun hasil hutan yang bukan berupa kayu.
Firdara, E. K. (Eritha), Putir, P. E. (Patricia), Tanduh, Y. (Yusintha)   +2 more
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Delocalization Transition of a Rough Adsorption-Reaction Interface

, 2000
We introduce a new kinetic interface model suitable for simulating adsorption-reaction processes which take place preferentially at surface defects such as steps and vacancies.
Alkan Kabakçıoğlu, Ayşe Erzan, B. Derrida, B.P. Lee, C.S. Nolle, F. Family, G.A. Somorjai, H. Kaya, H. Kaya, Hüseyin Kaya, J. Krug, K. Wandelt, L. Gálfi, M. Cieplak, M. Eden, M. Kardar, M. Richardson, N. Memmel, P. Meakin, R.E. Liesegang, R.M. Ziff, S.F. Edwards, T. Halpin-Healy, Y. Tu   +23 more
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