36,909 research outputs found
Symbol Invariant of Partition and the Construction
The symbol is used to describe the Springer correspondence for the classical
groups. We propose equivalent definitions of symbols for rigid partitions in
the , , and theories uniformly. Analysing the new definition of
symbol in detail, we give rules to construct symbol of a partition, which are
easy to remember and to operate on. We introduce formal operations of a
partition, which reduce the difficulties in the proof of the construction
rules. According these rules, we give a closed formula of symbols for different
theories uniformly. As applications, previous results can be illustrated more
clearly by the construction rules of symbol.Comment: 31 pages,typo corrected,english improve
Rigid Surface Operators and Symbol Invariant of Partitions
The symbol is used to describe the Springer correspondence for the classical
groups by Lusztig. We refine the explanation that the duality maps of the
rigid surface operators are symbol preserving maps. We find that the maps
and are essentially the same. We clear up cause of the mismatch problem
of the total number of the rigid surface operators between the and
theories. We construct all the rigid surface operators which can not
have a dual. A classification of the problematic surface operators is made.Comment: 23 pages, 26 figures,typo corrected, english improve
Negative Energy: From Lamb Shift to Entanglement
"Negative energy" has been one of the most enduring puzzles in quantum
theory, whereas the present work reveals that it actually plays a central role
in clarifying various controversies of quantum theory. The basic idea is
contained in a hypothesis on negative energy, and it is shown that the idea:
(1)is compatible with both relativistic quantum mechanics and known
experimental results; (2)helps to clarify the essence of matter waves, and
therefore better understand the reality of the wave function, the so-called
'wave-packet reduction' occurring in quantum measurement, and the ghost like
correlations between entangled systems; (3)is helpful for distinguishing the
vacuum from the ground state of the quantized field, and may supply a possible
way for removing the deep-rooted infinities in quantum field theory. The vacuum
energy density of the electromagnetic field is calculated here as an example.
By employing the same idea, the Lamb-Shift is recalculated in a different way
from conventional renormalization method, yet the same result as Bethe's can be
definitely obtained.Comment: 15 page
Inferring dissipation from the violation of Fluctuation-Dissipation Theorem
The Harada-Sasa equality elegantly connects the energy dissipation rate of a
moving object with its measurable violation of the Fluctuation-Dissipation
Theorem (FDT). Although proven for Langevin processes, its validity remains
unclear for discrete Markov systems whose forward and backward transition rates
respond asymmetrically to external perturbation. A typical example is a motor
protein called kinesin. Here we show generally that the FDT violation persists
surprisingly in the high-frequency limit due to the asymmetry, resulting in a
divergent FDT violation integral and thus a complete breakdown of the
Harada-Sasa equality. A renormalized FDT violation integral still well predicts
the dissipation rate when each discrete transition produces a small entropy in
the environment. Our study also suggests a new way to infer this perturbation
asymmetry based on the measurable high-frequency-limit FDT violation.Comment: 10 pages, 4 figure
Exact microscopic wave function for a topological quantum membrane
The higher dimensional quantum Hall liquid constructed recently supports
stable topological membrane excitations. Here we introduce a microscopic
interacting Hamiltonian and present its exact ground state wave function. We
show that this microscopic ground state wave function describes a topological
quantum membrane. We also construct variational wave functions for excited
states using the non-commutative algebra on the four sphere. Our approach
introduces a non-perturbative method to quantize topological membranes
Complete next-to-leading order QCD corrections to charged Higgs boson associated production with top quark at the CERN Large Hadron Collider
The complete next-to-leading order (NLO) QCD corrections to charged Higgs
boson associated production with top quark through at the CERN
Large Hadron Collider are calculated in the minimal supersymmetric standard
model (MSSM) and two-Higgs-doublet model in the scheme. The NLO QCD
corrections can reduce the scale dependence of the leading order (LO) cross
section. The K-factor (defined as the ratio of the NLO cross section to the LO
one) does not depend on if the same quark running masses are used
in the NLO and LO cross sections, and varies roughly from to when charged Higgs boson mass increases from 200 GeV to 1000 GeV.Comment: 31 pages, discussions, figs and refs added, conclusion unchanged,
final PRD versio
Dark Matter Signature from the Sky and at Colliders
In this talk, we briefly review our recent investigations on the properties
of dark matter (DM) particle.Comment: 4 pages, talk at ICHEP201
Supersymmetric QCD corrections to lightest Higgs boson associated production with top quark pair at Linear Colliders
Supersymmetric (SUSY) QCD corrections to the lightest neutral Higgs boson
associated production with top quark pair are studied in the minimal
supersymmetric standard model (MSSM) at Linear colliders. Our calculations show
that the SUSY QCD effects generally are very moderate (say 10%) and under
control, except for some rescattering effects which lead to a breakdown of
perturbation theory and require a more detailed study. In the vicinity of the
production threshold for the favorable model parameters under the framework of
the on-shell renormalization scheme, SUSY QCD can be as large as about -50%.
Such effects might be acted as the probe to determine the sign of .Comment: 14 pages, 3 fig
Way to Discriminate between Mesons and Glueballs for Unflavored Hadrons
Based on the general analysis of branching ratio of two pseudoscalar meson
channels, discriminants between mesons and glueballs for unflavored hadrons with mass between 1.2 GeV and 2.9 GeV are
suggested. Known particle is discriminated as a
typical meson. The way to discriminate new unflavored
hadrons is discussed.Comment: 9 pages including 2 eps figure
Positivity of heights of codimension 2 cycles over function field of characteristic 0
In this note, we show how the classical Hodge index theorem implies the Hodge
index conjecture of Beilinson for height pairing of homologically trivial
codimension two cycles over function field of characteristic 0. Such an index
conjecture has been used in our paper on Gross-Schoen cycles to deduce the
Bogomolov conjecture and a lower bound for Hodge class (or Faltings height)
from some conjectures about metrized graphs which have just been recently
proved by Zubeyir Cinkir
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