1,462,527 research outputs found
The Absolute Frame of Reference
The manuscript found the formula to calculate the real velocity of the earth and the maximum velocity in the universe, the values of the quantities after calculation as follows:
V_earth = 1.852819296∗10^8 m/s.--
C_max = 4.8507438399∗10^8 m/s.--
In order to calculate the above results, the manuscript has built a reference frame transformation suitable for all types of motion(suitable for both linear motion and chaotic motion of the reference frame). This means that we will calculate the velocity of an object without using the distance S quantity of the object
125 Gbps Pre-Compensated Nonlinear Frequency-Division Multiplexed Transmission
Record-high data rate of 125 Gb/s and SE over 2 bits/s/Hz in burst-mode
single-polarization NFDM transmissions were achieved over 976 km of SSMF with
EDFA-only amplification by transmitting and processing 222 32 QAM-modulated
nonlinear subcarriers simultaneouslyComment: This paper will be presented at ECOC 2017, Gothenburg, Swede
Resolving disagreement for eta/s in a CFT plasma at finite coupling
The ratio of shear viscosity to entropy density in a strongly coupled CFT
plasma can be computed using the AdS/CFT correspondence either from equilibrium
correlation functions or from the Janik-Peschanski dual of the boost invariant
plasma expansion. We point out that the previously found disagreement for eta/s
at finite t' Hooft coupling is resolved once the incoming-wave boundary
condition for metric fluctuations at the horizon of the dual geometry is
properly imposed.Comment: 7 page
The viscosity bound in string theory
The ratio of shear viscosity to entropy density of any material in
nature has been conjectured to have a lower bound of , the famous KSS
bound. We examine string theory models for evidence in favour of and against
this conjecture. We show that in a broad class of models quantum corrections
yield values of just above the KSS bound. However, incorporating
matter fields in the fundamental representation typically leads to violations
of this bound. We also outline a program to extend AdS/CFT methods to RHIC
phenomenology.Comment: 4 pages, To appear in the conference proceedings for Quark Matter
2009, March 30 - April 4, Knoxville, Tennesse
Short-distance and short-time structure of a unitary Fermi gas
We consider the operator product expansions for unitarity fermions. We
compute the dynamic structure factor S(q,w) at large frequency and wavenumber
away from the one-particle peak. The overall normalization of S(q,w) is
determined by Tan's contact parameter, and the dependence on q and w is
obtained in closed analytic form. We also find energy deposited into the system
by small, rapid variations of the inverse scattering length.Comment: 11 pages, 8 figure
Envelope addressed to E. S. Halsey Esq
Envelope has a canceled 3 cent stamp, a cancellation stamp, a return address and a mailing addresshttps://scholars.fhsu.edu/tj_ks_territorial_docs/1045/thumbnail.jp
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