2,332 research outputs found
The Concept of Counterculture: A Study
The movement of Counter Culture marks its historical significance in America. It came as the result of post World War II. This movement brought new trend of eccentric look, loud music, consumption of drug, sexual liberation. It happened first time in the history of American culture that young generation was moved towards mental peace rather than material gain. Even India has witnessed Counter Culture movement in the fields of music, films and literature. The Beats have also played an important role to voice against the tendency of American society through art during 1950. Later in 1960 the Hippie generation followed Beats and named the movement ‘Counter Culture’. The Beats remained limited to the groups of writers where as the Hippies reached far into the society with their counter culture movement. The tone of this cultural storm was that if you want to do something than just go for it. There are the instances where it seems that Henry David Thoreau may have inspired the counter culture movement through his Walden and Civil Disobedience
Reduction of Wave Function which Transforms as Complex Antisymmetric Tensor to Irreducible Representation of Lorentz Group (Zero Mass System)
Reduction of Wave Function Which Transform as a Complex Antisymmetric Tensor to the Irreducible Representation of Lorentz Group
Lattice dynamics of II-VI materials using the adiabatic bond-charge model
We extend the adiabatic bond-charge model, originally developed for group IV semiconductors and III-V compounds, to study phonons in more ionic II-VI compounds with a zinc-blende structure. Phonon spectra, density of states, and specific heats are calculated for six II-VI compounds and compared with both experimental data and the results of other models. We show that the six-parameter bond-charge model gives a good description of the lattice dynamics of these materials. We also discuss trends in the parameters with respect to the ionicity and metallicity of these compounds. © 1996 The American Physical Society
On Cache-Aided Multi-User Private Information Retrieval with Small Caches
In this paper, we propose a scheme for the problem of cache-aided multi-user
private information retrieval with small caches, in which users are
connected to non-colluding databases via shared links. Each database
contains a set of files, and each user has a dedicated cache of size
equivalent to the size of files. All the users want to retrieve a file
without revealing their demands to the databases. During off-peak hours, all
the users will fill their caches, and when required, users will demand their
desired files by cooperatively generating query sets for each database. After
receiving the transmissions from databases, all the users should get their
desired files using transmitted data and their cache contents. This problem has
been studied in [X. Zhang, K. Wan, H. Sun, M. Ji and G. Caire, \tqt{Fundamental
limits of cache-aided multiuser private information retrieval}, IEEE Trans.
Commun., 2021], in which authors proposed a product design scheme. In this
paper, we propose a scheme that gives a better rate for a particular value of
than the product design scheme. We consider a slightly different approach
for the placement phase. Instead of a database filling the caches of all users
directly, a database will broadcast cache content for all users on a shared
link, and then the users will decide unitedly which part of the broadcasted
content will be stored in the cache of each user. This variation facilitates
maintaining the privacy constraint at a reduced rate.Comment: 32 pages, 7 tables and 1 figur
Second Quantization and Interaction of Electromagnetic Fields for Non Zero Mass System in Angular Momentum Basis : II
The study of interaction and second quantization of electromagnetic fields
for non-zero mass system has boon undertaken in angular momentum
basis and the selection rules for omission and absorption of a massive
particle are derived. Reducton of real transverse electromagnetic
vector potential for non-zero mass system has been derived in terms of
irreducible representations of proper, ortho-chronous, inhomogeneous
Lorentz group in angular momentum basi
Quaternion Gravi-Electromagnetism
Defining the generalized charge, potential, current and generalized fields as
complex quantities where real and imaginary parts represent gravitation and
electromagnetism respectively, corresponding field equation, equation of motion
and other quantum equations are derived in manifestly covariant manner. It has
been shown that the field equations are invariant under Lorentz as well as
duality transformations. It has been shown that the quaternionic formulation
presented here remains invariant under quaternion transformations.Comment: Key Words: Quaternion, dyons, gravito-dyons, gravi-electromagnetism.
PACS No.: 04.90. +e ; 14.80. H
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