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Evidence mounts for quantum criticality theory（图）
Evidence mounts quantum criticality theory
2015/3/4
A new study by a team of physicists at Rice University, Zhejiang University, Los Alamos National Laboratory, Florida State University and the Max Planck Institute adds to the growing body of evidence ...
Ginzburg-Landau-Wilson Aspects of Deconfined Criticality
Monte carlo spin vibrator parameters combined with the data
2014/12/20
Monte Carlo study of the deconfined critical action phase diagram reveals a region where spinon deconfinement occurs through a weak first-order phase transition, in agreement with Ginzburg- Landau the...
Deconfined criticality, runaway flow in the two-component scalar electrodynamics and weak first-order superfluid-solid transitions
The monte carlo model strong coupling mechanism weak coupling triple point coupling
2014/12/20
We perform a comparative Monte Carlo study of the easy-plane deconfined critical point (DCP) action and its short-range counterpart to reveal close similarities between the two models for intermediate...
Search for Deconfined Criticality: SU(2) D′ej`a Vu
Monte carlo simulation renormalization flow coupling ferromagnetic materials solid quantum
2014/12/19
Monte Carlo simulations of the SU(2)-symmetric deconfined critical point action reveal strong violations of scale invariance for the deconfinement transition. We find compelling evidence that the gene...
Criticality in Trapped Atomic Systems
The atomic system density image yield and parameters
2014/12/19
We discuss generic limits posed by the trap in atomic systems on the accurate determination of critical parameters for second-order phase transitions, from which we deduce optimal protocols to extract...
Symmetric Criticality in Classical Field Theory
Symmetric Criticality Classical Field Theory
2010/12/27
This is a brief overview of work done by Ian Anderson, Mark Fels, and myself on symmetry reduction of Lagrangians and Euler-Lagrange equations, a subject closely related to Palais' Principle of Symmet...
Quantum criticality in disordered bosonic optical lattices
Quantum criticality disordered bosonic optical lattices
2010/11/25
Using the exact Bose-Fermi mapping, we study universal properties of ground-state density distributions and finite-temperature quantum critical behavior of one-dimensional hard-core bosons in trapped ...
Lifshitz Transition and Quantum Criticality in an Extended Periodic Anderson Model
Lifshitz Transition Quantum Criticality Extended Periodic Anderson Model
2010/11/25
We study the quantum phase transition in f-electron systems as a quantum Lifshitz transition
driven by selective Mott localization in a realistic extended Anderson lattice model. Using DMFT,we find t...
Eliashberg theory for ferromagnetic quantum criticality in the surface of three dimensional topological insulators
Eliashberg theory ferromagnetic quantum dimensional topological insulators
2010/11/25
We develop an Eliashberg theory for ferromagnetic quantum criticality in the surface of three
dimensional topological insulators. A novel ingredient of the present study is to introduce an
anomalous...
Quantum criticality in the SO(5) bilinear-biquadratic Heisenberg chain
Quantum criticality SO(5) bilinear-biquadratic Heisenberg chain
2010/11/18
The zero-temperature properties of the SO(5) bilinear-biquadratic Heisenberg spin chain are investigated by means of a low-energy approach and large scale numerical calculations. In sharp contrast to ...
The built-up land represents an important type of overall landscape. In this paper the built-up land structure in the largest cities in the Czech Republic and selected cities in the U.S.A. is analyse...
Emergence of cooperation with self-organized criticality
self-organized criticality Physics
2010/11/16
Cooperation and self-organized criticality are two main keywords in current studies of evolution. We propose a generalized Bak-Sneppen model and provide a natural mechanism which accounts for both ph...
Symmetric Criticality in Classical Field Theory
Symmetric Criticality Classical Field Theory
2010/12/21
This is a brief overview of work done by Ian Anderson, Mark Fels, and myself on symmetry reduction of Lagrangians and Euler-Lagrange equations, a subject closely related to Palais’ Principle of Symmet...
Self-Organized Criticality in Proteins: Hydropathic Roughening Profiles of G-Protein Coupled Receptors
Proteins: Hydropathic Roughening Profiles G-Protein Coupled Receptors
2010/11/24
Proteins appear to be the most dramatic natural example of self-organized criticality (SOC), a concept that explains many otherwise apparently unlikely phenomena. Protein conformational functionality ...
Finite Size Scaling for Criticality of the Schrödinger Equation
Finite Size Scaling Criticality Schrö dinger Equation
2010/10/20
By solving the Schrodinger equation one obtains the whole energy spectrum, both the bound and
the continuum states. If the Hamiltonian depends on a set of parameters, these could be tuned to a trans...