Results 1 to 10 of about 26,618 (127)

Aspects of topology of condensates and knotted solitons in condensed matter systems [PDF]

open access: yes, 1992
The knotted solitons introduced by Faddeev and Niemi is presently a subject of great interest in particle and mathematical physics. In this paper we give a condensed matter interpretation of the recent results of Faddeev and Niemi.Comment: v2: Added a ...
El-Zein M. S.   +10 more
core   +1 more source

What can gauge-gravity duality teach us about condensed matter physics? [PDF]

open access: yes, 2012
I discuss the impact of gauge-gravity duality on our understanding of two classes of systems: conformal quantum matter and compressible quantum matter.
Liu H, Sachdev S
core   +2 more sources

Fermi surfaces and gauge-gravity duality [PDF]

open access: yes, 2011
We give a unified overview of the zero temperature phases of compressible quantum matter: i.e. phases in which the expectation value of a globally conserved U(1) density, Q, varies smoothly as a function of parameters.
Liza Huijse   +3 more
core   +2 more sources

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

open access: yes, 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   +31 more
core   +3 more sources

Zoo of quantum-topological phases of matter [PDF]

open access: yes, 2017
What are topological phases of matter? First, they are phases of matter at zero temperature. Second, they have a non-zero energy gap for the excitations above the ground state. Third, they are disordered liquids that seem have no feature.
Wen, Xiao-Gang
core   +2 more sources

Correlations in Bipartite Collaboration Networks

open access: yes, 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
  +11 more
core   +1 more source

Early Universe Quantum Processes in BEC Collapse Experiments [PDF]

open access: yes, 2005
We show that in the collapse of a Bose-Einstein condensate (BEC) {For an excellent introduction to BEC theory, see C. Pethick and H. Smith, Bose-Einstein condensation in dilute gases (Cambridge University Press, Cambridge, England, 2002)} certain ...
A. Gammal   +68 more
core   +4 more sources

Recent Developments in the SO(5) Theory of High $T_c$ Superconductivity

open access: yes, 1997
In this talk I outline the general strategy behind the SO(5) theory of high $T_c$ superconductivity. Progress in the direction of exact SO(5) models, numerical exact diagonalization and possible experimental tests are reviewed.
Arovas   +8 more
core   +1 more source

Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond [PDF]

open access: yes, 2007
We review recent developments in the physics of ultracold atomic and molecular gases in optical lattices. Such systems are nearly perfect realisations of various kinds of Hubbard models, and as such may very well serve to mimic condensed matter phenomena.
Aditi Sen(De)   +107 more
core   +3 more sources

Testing cosmological defect formation in the laboratory

open access: yes, 2001
Topological defects such as cosmic strings may have been formed at early-universe phase transitions. Direct tests of this idea are impossible, but the mechanism can be elucidated by studying analogous processes in low-temperature condensed-matter systems.
Bowick   +22 more
core   +1 more source

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