1,293 research outputs found
James R. Taylor et Elizabeth J. Van Every. The Vulnerable Fortress -Bureaucratic Organization and Management in the Information Age, 1993
Banerjee Indrajit. James R. Taylor et Elizabeth J. Van Every. The Vulnerable Fortress -Bureaucratic Organization and Management in the Information Age, 1993. In: Communication. Information Médias Théories, volume 16 n°2, décembre 1995. pp. 231-234
Weak universality induced by Q = ± 2e charges at the deconfinement transition of a (2+1)-dimensional U(1) lattice gauge theory
Matter-free lattice gauge theories (LGTs) provide an ideal setting to understand confinement to deconfinement transitions at finite temperatures, which is typically due to the spontaneous breakdown (at large temperatures) of the center symmetry associated with the gauge group. Close to the transition, the relevant degrees of freedom (Polyakov loop) transform under these center symmetries, and the effective theory depends on only the Polyakov loop and its fluctuations. As shown first by Svetitsky and Yaffe, and subsequently verified numerically, for the U(1) LGT in (2 þ 1) dimensions, the transition is in the 2D XY universality class, while for the Z2 LGT, it is in the 2D Ising universality class. We extend this classic scenario by adding higher charged matter fields and show that the critical exponents γ and ν can change continuously as a coupling is varied, while their ratio is fixed to the 2D Ising value. While such weak universality is well known for spin models, we demonstrate this for LGTs for the first time. Using an efficient cluster algorithm, we show that the finite temperature phase transition of the U(1) quantum link LGT in the spin S ¼ 12 representation is in the 2D XY universality class, as expected. On the addition of Q ¼ ±2e charges distributed thermally, we demonstrate the occurrence of weak universality
Sublattice scars and beyond in two-dimensional quantum link lattice gauge theories
In this article, we elucidate the structure and properties of a class of
anomalous high-energy states of matter-free quantum link gauge theory
Hamiltonians using numerical and analytical methods. Such anomalous states,
known as quantum many-body scars in the literature, have generated a lot of
interest due to their athermal nature. Our starting Hamiltonian is , where
is a real-valued coupling, and
() are summed local diagonal (off-diagonal)
operators in the electric flux basis acting on the elementary plaquette
. The spectrum of the model in its spin- representation
on lattices reveal the existence of sublattice scars, , which satisfy for all elementary plaquettes on one sublattice and on the other, while
being simultaneous zero modes or nonzero integer-valued eigenstates of
. We demonstrate a ``triangle relation'' connecting
the sublattice scars with nonzero integer eigenvalues of to particular sublattice scars with
eigenvalues. A fraction of the sublattice
scars have a simple description in terms of emergent short singlets, on which
we place analytic bounds. We further construct a long-ranged parent Hamiltonian
for which all sublattice scars in the null space of become unique ground states and elucidate some of
the properties of its spectrum. In particular, zero energy states of this
parent Hamiltonian turn out to be exact scars of another quantum link
model with a staggered short-ranged diagonal term.Comment: 18 pages, 10 figure
A Stacked Segmented Adaptive Power Amplifier in 22nm FD-SOI
This work was supported by Soitec. (Corresponding author: Aritra Banerjee.
Author Exchange
Anthropologist Mukulika Banerjee and political scientist Sushmita Pati have a conversation about their recently published books set in rural Bengal and Delhi’s urban villages, respectively. They situate their analyses of the intersections between democracy, capitalism, urbanization, and globalization in events, relations, and cultures of the everyday. Their exchange offers important insights for how political subjectivities and social ties are differently constituted or, to use Banerjee’s term, “cultivated” in these two settings. The two books offer a fine-grained view of how active citizenship in rural and urban India is refracted through distinct social and institutional structures. India is home to some of the world’s largest cities while more than 900 million people continue to live in the countryside. Its democratic future is therefore inextricably tied to the evolution of political behavior and political economy in both contexts, and, as Banerjee and Pati’s joint response indicates, to how urban and rural dynamics shape each other through (but not only through) migrants and their networks.
Contents:
Review of Mukulika Banerjee’s \u27Cultivating Democracy: Politics and Citizenship in Agrarian India\u27 by Sushmita Pati
Response from Mukulika Banerjee
Review of Sushmita Pati’s \u27Properties of Rent: Community, Capital and Politics in Globalising Delhi\u27 by Mukulika Banerjee
Response from Sushmita Pati
Joint Commentary from Banerjee and Pat
On some topology generated by -density function
In this paper we have studied on -density function using the
notion of -density, introduced by Banerjee and Debnath
\cite{banerjee 4} where is an ideal of subsets of the set of
natural numbers. We have explored certain properties of -density
function and induced a topology using this function in the space of reals
namely -density topology and we have given a characterization of
the Lebesgue measurable subsets of reals in terms of Borel sets in
-density topology.Comment: 12 pages. arXiv admin note: text overlap with arXiv:2205.0337
Rhetoric and Reality. The Internet Challenge for Democracy in Asia
Review of Rhetoric and Reality. The Internet Challenge for Democracy in Asia / Indrajit Banerjee (ed.). Rhetoric and Reality. Singapore: Eastern Universities Press, 200
Banerjee_QSurvey_RawDataSet_PPC
Raw dataset for questionnaire survey study (kinesiology taping_cancer care continuum)Author: Gourav Banerjee et alJournal: Progress in Palliative Care</div
FEMININE VISIBILITY IN A MYTHOLOGICAL CONTEXT OF CHITRA BANERJEE DIVAKARUNI’S THE PALACE OF ILLUSIONS
Chitra Banerjee Divakaruni an Indo-American author, works as a professor of English in the University of Houston. She is also a co-founder and former president of a helpline for South Asian women. She involves herself eagerly as a volunteer at women’s center at Berkeley and assists battered women through the organization. MAITRI, the organization was begun in 1991 by her with the help of a group of friends. Chitra Banerjee Divakaruni an expatriate writer, pictures Indian womanhood how they are treated by men in their lives. An explicit attempt to retell the epic in novel form is Chitra Banerjee Divakaruni’s The Palace of Illusions which will be analyzed in the following. The present paper analyzes how women is treated by male as a lifeless thing in the novel. This study is an attempt to illustrate how revisionist mythmaking is a feminist endeavor to revalue the experiences of women in patriarchy and redefine women from feminist perspectives.
 
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