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Exploration of the phase structure of $SU(N_c)$ lattice gauge theory with many Wilson fermions at strong coupling
phase structure $SU(N_c)$ lattice gauge theory
2011/1/13
We explore aspects of the phase structure of SU(2) and SU(3) lattice gauge theories at strong
coupling with many flavours Nf of Wilson fermions in the fundamental representation, including
the relev...
Supersymmetry restoration in lattice formulations of 2D $\mathcal{N}=(2,2)$ WZ model based on the Nicolai map
Supersymmetry lattice field theory Nicolai map continuum
2011/1/13
For lattice formulations of the two-dimensional N = (2, 2) Wess–Zumino (2D N = (2, 2) WZ) model on the basis of the Nicolai map, we show that supersymmetry (SUSY) and other symmetries are restored in ...
Domain Wall Fermion Lattice Simulation in Quaternion Basis
Domain Wall Fermion Lattice Simulation Quaternion Basis
2011/1/14
In the QCD analysis, when quarks are expressed in quaternion basis, the quark and its charge
conjugate together are expressed by octonions and the octonion posesses the triality symmetry.
Gluos are ...
Determination of the Upper Critical Field of a Single Crystal LiFeAs: The Magnetic Torque Study up to 35 Tesla
iron-based superconductor LiFeAs upper critical field anisotropy
2010/11/18
We report on the upper critical field Bc2 of a superconducting LiFeAs single crystal with
Tc ∼16K, determined from magnetic torque measurements in dc-magnetic fields up to 35T and
at temperatu...
The excited hadron spectrum in lattice QCD using a new variance reduction method
excited hadron spectrum lattice QCD new variance reduction method
2011/1/14
Progress in calculating the spectrum of excited baryons and mesons in lattice QCD is described.
Correlation matrices of sets of spatially-extended hadron operators have been studied and their
effect...
Graphene-based modulation-doped superlattice structures
Graphene-based modulation-doped superlattice structures
2010/11/22
The electronic transport properties of graphene-based superlattice structures are investi-
gated. A graphene-based modulation-doped superlattice structure geometry is proposed and con-
sist of perio...
Imprints of Anisotropic Inflation on the CMB
cosmology inflation – cosmic background radiation
2010/12/21
We study the imprints of anisotropic inflation on the CMB temperature fluctuations and polarizations. The statistical anisotropy stems not only from the direction de-pendence of curvature and tensor p...
Nearly Free Electron States in Graphane Nanoribbon Superlattice
Graphane Nanoribbon Superlattice
2010/11/23
Nearly free electron (NFE) state has been widely studied in low dimensional systems. Based on
first-principles calculations, we identify two types of NFE states in graphane nanoribbon
superlattice, ...
Towards the continuum limit of the lattice Landau gauge gluon propagator
confinement Landau gauge lattice QCD gluon propagator
2011/1/14
The infrared behaviour of the lattice Landau gauge gluon propagator is discussed, combining results from simulations with different volumes and lattice spacings. In particular, the Cucchieri-Mendes bo...
The leading hadronic vacuum polarisation on the lattice
chiral Lagrangians lattice gauge theory muons electric moments
2011/1/14
After discussing the relevance of a first principles theory-prediction of the hadronic vacuum polarisation for Standard Model tests, the theoretical challenges for its computation in lattice QCD are r...
Translation invariant tensor product states in a finite lattice system
Translation invariant tensor product states finite lattice system
2010/11/19
We show that the matrix (or more generally tensor) product states in a finite translation invariant system can be accurately constructed from the same set of local matrices (or tensors) that are deter...
Single Crystal Study of Competing Rhombohedral and Monoclinic Order in Lead Zirconate Titanate
Single Crystal Study of Competing Rhombohedral Monoclinic Order Lead Zirconate Titanate
2010/11/23
Neutron diffraction data obtained on single crystals of PbZr1−xTixO3 with x = 0.325 and x =
0.460, which lie on the pseudorhombohedral side of the morphotropic phase boundary, suggest a
coexis...
Room Temperature Coherent and Voltage Tunable Terahertz Emission from Nanometer-Sized Field Effect Transistors
Room Temperature Coherent Voltage Tunable Terahertz Emission
2010/11/24
We report on reflective electro-optic sampling measurements of TeraHertz emission from nanometer-gate-length InGaAs-based high electron mobility transistors. The room temperature coherent gate-voltage...
Worm Monte Carlo study of the honeycomb-lattice loop model
Monte Carlo Worm algorithm Loop model
2010/11/19
We present a Markov-chain Monte Carlo algorithm of worm type that correctly simulates the
O(n) loop model on any (finite and connected) bipartite cubic graph, for any real n > 0, and
any edge weight...
Antiferromagnetic ordering in EuPtGe$_3$ single crystal
EuPtGe3 non-centrosymmetric antiferromagnetism resistivity
2010/11/25
Magnetic properties of single crystalline EuPtGe3, crystallizing in the non-centrosymmetric BaNiSn3-type crystal strcuture have been studied by means of magnetisation, electrical resistivity, heat cap...