Results 71 to 80 of about 858,174 (293)

Thermal conductivity of anisotropic and frustrated spin-1/2 chains [PDF]

, 2002
We analyze the thermal conductivity of anisotropic and frustrated spin-1/2 chains using analytical and numerical techniques. This includes mean-field theory based on the Jordan-Wigner transformation, bosonization, and exact diagonalization of systems ...
A. Honecker, A. Klümper, A.V. Sologubenko, A.V. Sologubenko, A.V. Sologubenko, C. Hess, D. C. Cabra, F. Heidrich-Meisner, J. des Cloizeaux, J. V. Alvarez, K. Kudo, K. Nomura, S. Eggert, Th. Niemeijer, W. Brenig, W. Brenig, X. Zotos   +16 more
core   +2 more sources

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Hard Thermal Loops in Chiral Perturbation Theory [PDF]

, 1998
It is shown how the hard thermal loop approximation can be used in chiral perturbation theory to study some thermal properties of Goldstone bosons. Hard thermal effects are first studied in the non-linear sigma model.
Manuel, Cristina
core   +1 more source

Stochastic Quantization of Real-Time Thermal Field Theory

, 2009
We use the stochastic quantization method to obtain the free scalar propagator of a finite temperature field theory formulated in Minkowski spacetime. First we use the Markovian stochastic quantization approach to present the two-point function of the ...
Abramowitz M., Abrikosov A. A., Abrikosov A. A., Creutz M., G. Menezes, Keldysh L. V., Kubo R., N. F. Svaiter, Parisi G., T. C. de Aguiar, Zwanzig R.   +10 more
core   +1 more source

Finite volume effects in thermal field theory [PDF]

Journal of High Energy Physics, 2009
(14+1 ...
openaire   +2 more sources

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Violations of local equilibrium and linear response in classical lattice theories

, 2001
We study the dynamics of $\phi^4$ theory and the FPU $\beta$ model under thermal gradients, from first principles. We analyze quantitatively how local equilibrium and linear response are violated, paying special care to how we find observables that ...
Aoki, Aoki, Aoki, Casas-Vazquez, Casas-Vazquez, Ciccotti, de Groot, Dhar, Dimitri Kusnezov, Eu, Evans, Garcia-Colin, Hafskjold, Hoover, Jou, Kaburaki, Keizer, Kenichiro Aoki, Lepri, Lepri, Loose, Maeda, Marcelli, Mareschal, Nettleton, Rastogi, Ryckaert, Takesue, Tenenbaum, Tenenbaum, Trozzi, Valesco   +31 more
core   +1 more source

Soft Thermal Loops in Scalar Quantum Electrodynamics [PDF]

, 1999
Scalar QED is used to study approximations in thermal field theory beyond the Hard Thermal Loop resummation scheme. For this purpose the photon self energy is calculated for external momenta of the order e^2T using Hard Thermal Loop resummed Green ...
Arnold, Biró, Blaizot, Braaten, Bödeker, Carrington, Cohen, Elze, Kajantie, Kraemmer, Markus H. Thoma, Müller, Rebhan, Stefan Leupold   +13 more
core   +3 more sources

Quantum statistical correlations in thermal field theories: Boundary effective theory [PDF]

Physical Review D, 2010
13 pages, 1 ...
Moreira, André Bessa, Brandt, Fernando Tadeu Caldeira, Carvalho Filho, Carlos Alberto Aragão de, Fraga, Eduardo Souza   +3 more
openaire   +3 more sources

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

Advanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani, Miguel Angel Selles, Maziar Ramezani   +2 more
wiley   +1 more source