3,787 research outputs found
Discussion of "Feature Matching in Time Series Modeling" by Y. Xia and H. Tong
Discussion of "Feature Matching in Time Series Modeling" by Y. Xia and H.
Tong [arXiv:1104.3073]Comment: Published in at http://dx.doi.org/10.1214/11-STS345B the Statistical
Science (http://www.imstat.org/sts/) by the Institute of Mathematical
Statistics (http://www.imstat.org
A Next Generation High-speed Data Acquisition System for Multi-channel Infrared and Optical Photometry
We report the design, operation, and performance of a next generation
high-speed data acquisition system for multi-channel infrared and optical
photometry based on the modern technologies of Field Programmable Gate Arrays,
the Peripheral Component Interconnect bus, and the Global Positioning System.
This system allows either direct recording of photon arrival times or binned
photon counting with time resolution up to 1-s precision in Universal
Time, as well as real-time data monitoring and analysis. The system also allows
simultaneous recording of multi-channel observations with very flexible,
reconfigurable observational modes. We present successful 20-s resolution
simultaneous observations of the Crab Nebula Pulsar in the infrared (H-band)
and optical (V-band) wavebands obtained with this system and 100-s
resolution V-band observations of the dwarf nova IY Uma with the 5-m Hale
telescope at the Palomar Observatory.Comment: 11 pages, including 4 figures, to appear in PAS
Supersymmetric Higgs Boson Decays in the MSSM with Explicit CP Violation
Decays into neutralinos and charginos are among the most accessible
supersymmetric decay modes of Higgs particles in most supersymmetric extensions
of the Standard Model. In the presence of explicitly CP--violating phases in
the soft breaking sector of the theory, the couplings of Higgs bosons to
charginos and neutralinos are in general complex. Based on a specific benchmark
scenario of CP violation, we analyze the phenomenological impact of explicit CP
violation in the Minimal Supersymmetric Standard Model on these Higgs boson
decays. The presence of CP--violating phases could be confirmed either directly
through the measurement of a CP--odd polarization asymmetry of the produced
charginos and neutralinos, or through the dependence of CP--even quantities
(branching ratios and masses) on these phases.Comment: 14 pages, latex, 4 eps figure
Some GrĂĽss' Type Inequalities in 2-Inner Product Spaces and Applications for Determinantal Integral Inequalities
Some new GrĂĽss type inequalities in 2-inner product spaces are given. Using this framework, some determinantal integral inequalities for synchronous functions are also derived
Some Inequalities in 2-inner Product Spaces
In this paper we extend some results on the refinement of Cauchy-Buniakowski-Schwarz's inequality and Aćzel's inequality in inner product spaces to 2-inner product spaces
On Some GrĂĽss Type Inequality in 2-Inner Product Spaces and Applications
In this paper, we shall give a generalization of the GrĂĽss type inequality and obtain some applications of the GrĂĽss type inequality in terms of 2-inner product spaces
Emergence of supersymmetry on the surface of three dimensional topological insulators
We propose two possible experimental realizations of a 2+1 dimensional
spacetime supersymmetry at a quantum critical point on the surface of three
dimensional topological insulators. The quantum critical point between the
semi-metallic state with one Dirac fermion and the s-wave superconducting state
on the surface is described by a supersymmetric conformal field theory within
-expansion. We predict the exact voltage dependence of the
differential conductance at the supersymmetric critical point.Comment: 8 pages, 2 figures; published versio
Order in a Spatially Anisotropic Triangular Antiferromagnet
The phase diagram of the spin-1/2 Heisenberg antiferromagnet on an
anisotropic triangular lattice of weakly coupled chains, a model relevant to
Cs2CuCl4, is investigated using a renormalization group analysis, which
includes marginal couplings important for connecting to numerical studies of
this model. In particular, the relative stability of incommensurate spiral
spin-density order and collinear antiferromagnetic order is studied. While
incommensurate spiral order is found to exist over most of the phase diagram in
the presence of a Dzyaloshinskii-Moriya (DM) interaction, at small interchain
and extremely weak DM couplings, collinear antiferromagnetic order can survive.
Our results imply that Cs2CuCl4 is well within the part of the phase diagram
where spiral order is stable. The implications of the renormalization group
analysis for numerical studies, many of which have found spin-liquidlike
behavior, are discussed.Comment: 10 pages, 7 figures, minor edits and reference adde
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