Results 11 to 20 of about 26,371 (119)

The formation of vortex loops (strings) in continuous phase transitions [PDF]

, 2001
The formation of vortex loops (global cosmic strings) in an O(2) linear sigma model in three spatial dimensions is analyzed numerically. For over-damped Langevin dynamics we find that defect production is suppressed by an interaction between correlated ...
A. Bray, A. J. Bray, Alex Travesset, Angelo Cacciuto, D. Boyanovsky, D. Boyanovsky, D. Ibaceta, D. Mermin, G. Karra, I. Chuang, I. Chuang, L. Michel, M. Bowick, M. Bowick, M. E. Dodd, M. E. Dodd, M. Gleiser, Mark J. Bowick, N. D. Antunes, N. D. Antunes, P. C. Hendry, R. H. Brandenberger, R. J. Rivers, S. Chandrasekhar, T. Vachaspati, T. W. B. Kibble, T. W. B. Kibble, V. M. Ruutu, V. M. Ruutu, W. H. Zurek, W. H. Zurek, W. H. Zurek   +31 more
core   +3 more sources

Correlations in Bipartite Collaboration Networks

, 2005
Collaboration networks are studied as an example of growing bipartite networks. These have been previously observed to have structure such as positive correlations between nearest-neighbour degrees. However, a detailed understanding of the origin of this
, , , Barber M J Krueger A Krueger T Roediger-Schluga T, Boguña M Pastor-Satorras R Diaz-Guilera A Arenas A, Dorogovtsev S N, Goldstein M L Morris S A Yen G G, Guillaume J-L Latapy M, Matti Peltomäki, Mikko Alava, Morris S A, Ramasco J J Morris S A   +11 more
core   +1 more source

Simulation of two-dimensional quantum systems using a tree tensor network that exploits the entropic area law [PDF]

, 2009
This work explores the use of a tree tensor network ansatz to simulate the ground state of a local Hamiltonian on a two-dimensional lattice. By exploiting the entropic area law, the tree tensor network ansatz seems to produce quasi-exact results in ...
G. Evenbly, G. Vidal, J. I. Latorre, L. P. Kadanoff, L. Tagliacozzo, T. W. Burkhardt   +5 more
core   +2 more sources

Compressible quantum phases from conformal field theories in 2+1 dimensions [PDF]

, 2012
Conformal field theories (CFTs) with a globally conserved U(1) charge Q can be deformed into compressible phases by modifying their Hamiltonian, H, by a chemical potential H -> H - \mu Q.
A. L. Fetter, E. Witten, J. M. Maldacena, Subir Sachdev   +3 more
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From Trapped Atoms to Liberated Quarks [PDF]

, 2006
We discuss some aspects of cold atomic gases in the unitarity limit that are of interest in connection with the physics of dense hadronic matter. We consider, in particular, the equation of state at zero temperature, the magnitude of the pairing gap, and
Blaizot J. P., Fulde P., Gorkov L. P., Larkin A. I., THOMAS SCHÄFER   +4 more
core   +4 more sources

Entangled Photon Pair Generator Via Biexciton–Exciton Cascade in Semiconductor Quantum Dots and its Simulation

Advanced Quantum Technologies, Volume 9, Issue 4, April 2026.
In this work an entangled photon pair generator that utilizes the biexciton–exciton cascade in semiconductor quantum dots is described on a physical, mathematical, and software level for interdisciplinary audiences, leading to Kraus operators to seamlessly incorporate it into bigger simulations.
Simon Sekavčnik, Paul Kohl, Janis Nötzel   +2 more
wiley   +1 more source

Non-commutative mechanics, in mathematical & in condensed matter physics [PDF]

, 2006
Non-commutative structures were introduced, independently and around the same time, in mathematical and in condensed matter physics (see Table~1). Souriau's construction applied to the two-parameter central extension of the planar Galilei group leads to ...
Horvathy, P. A.
core   +2 more sources

Non-commutative dynamics and roton-like spectra in bosonic and fermionic condensates

, 2004
The relation between symmetry breaking in non-commutative cut-off field theories and transitions to inhomogeneous phases in condensed matter is discussed.
Ambjorn, Bellissard, Bietenholz, Bietenholz, Bietenholz, Bigatti, Bistrovic, Brazovskii, Casalbuoni, Castorina, Castorina, Castorina, Castorina, Consoli, Dario Zappalà, Deryagin, Douglas, Feynman, Fulde, Giuseppe Riccobene, Gruner, Gubser, Gusynin, Jackiw, Jackiw, Kalinski, Larkin, Mazets, Miransky, Nakano, Nakano, Nazario, Overhauser, Overhauser, Paolo Castorina, Park, Polchinski, Rajagopal, Rapp, Santos, Shuster, Steinhauer, Szabo, Tatsumi, Yi, Yi   +45 more
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LionGlass™: A low‐melting, carbonate‐free alternative to soda lime silicate glass

Journal of the American Ceramic Society, Volume 108, Issue 12, December 2025.
Abstract LionGlass™ is Penn State University's patent‐pending alumino‐silicophosphate glass compositional family that offers, for the first time, a viable low‐melting, carbonate‐free alternative to soda lime silicate glass by (a) lowering the melting temperature by up to 400°C compared to soda lime silicate glass and (b) eliminating the use of ...
Nicholas L. Clark, Matthew Mancini, Elif P. Akman‐Ozay, Mehmet Arda Ozay, Sierra R. Astle, Shaylee M. Becerra, Colleen Gallagher, Albert C. Suceava, Corinne Claireaux, Oscar Verheijen, Tomasz Engelmann, Andreas Prange, Christian Roos, Glen B. Cook, Venkatraman Gopalan, John C. Mauro   +15 more
wiley   +1 more source

Dimer and trimer fluctuations in the s=1/2 transverse XX chain [PDF]

, 2005
Exact results for the dynamic dimer and trimer structure factors of the one-dimensional s=1/2 XX model in a transverse magnetic field ($\parallel z$) are presented and discussed in relation to known exact results for the dynamic spin structure factors ...
Derzhko, Oleg, Krokhmalskii, Taras, Müller, Gerhard, Stolze, Joachim   +3 more
core   +3 more sources