Institution
Raman Research Institute
Facility•Bengaluru, Karnataka, India•
About: Raman Research Institute is a facility organization based out in Bengaluru, Karnataka, India. It is known for research contribution in the topics: Liquid crystal & Galaxy. The organization has 999 authors who have published 3331 publications receiving 81968 citations.
Topics: Liquid crystal, Galaxy, Pulsar, Phase (matter), Discotic liquid crystal
Papers published on a yearly basis
Papers
More filters
••
TL;DR: This review summarizes theoretical progress in the field of active matter, placing it in the context of recent experiments, and highlights the experimental relevance of various semimicroscopic derivations of the continuum theory for describing bacterial swarms and suspensions, the cytoskeleton of living cells, and vibrated granular material.
Abstract: This review summarizes theoretical progress in the field of active matter, placing it in the context of recent experiments. This approach offers a unified framework for the mechanical and statistical properties of living matter: biofilaments and molecular motors in vitro or in vivo, collections of motile microorganisms, animal flocks, and chemical or mechanical imitations. A major goal of this review is to integrate several approaches proposed in the literature, from semimicroscopic to phenomenological. In particular, first considered are ``dry'' systems, defined as those where momentum is not conserved due to friction with a substrate or an embedding porous medium. The differences and similarities between two types of orientationally ordered states, the nematic and the polar, are clarified. Next, the active hydrodynamics of suspensions or ``wet'' systems is discussed and the relation with and difference from the dry case, as well as various large-scale instabilities of these nonequilibrium states of matter, are highlighted. Further highlighted are various large-scale instabilities of these nonequilibrium states of matter. Various semimicroscopic derivations of the continuum theory are discussed and connected, highlighting the unifying and generic nature of the continuum model. Throughout the review, the experimental relevance of these theories for describing bacterial swarms and suspensions, the cytoskeleton of living cells, and vibrated granular material is discussed. Promising extensions toward greater realism in specific contexts from cell biology to animal behavior are suggested, and remarks are given on some exotic active-matter analogs. Last, the outlook for a quantitative understanding of active matter, through the interplay of detailed theory with controlled experiments on simplified systems, with living or artificial constituents, is summarized.
3,314 citations
••
TL;DR: In this paper, the authors review the performance of the LIGO instruments during this epoch, the work done to characterize the detectors and their data, and the effect that transient and continuous noise artefacts have on the sensitivity of the detectors to a variety of astrophysical sources.
Abstract: In 2009–2010, the Laser Interferometer Gravitational-Wave Observatory (LIGO) operated together with international partners Virgo and GEO600 as a network to search for gravitational waves (GWs) of astrophysical origin. The sensitivity of these detectors was limited by a combination of noise sources inherent to the instrumental design and its environment, often localized in time or frequency, that couple into the GW readout. Here we review the performance of the LIGO instruments during this epoch, the work done to characterize the detectors and their data, and the effect that transient and continuous noise artefacts have on the sensitivity of LIGO to a variety of astrophysical sources.
1,266 citations
••
Curtin University1, Massachusetts Institute of Technology2, Arizona State University3, University of Washington4, University of Western Australia5, Monash University6, Harvard University7, Commonwealth Scientific and Industrial Research Organisation8, Raman Research Institute9, Victoria University of Wellington10, University of Wisconsin–Milwaukee11, National Centre for Radio Astrophysics12, National Radio Astronomy Observatory13, University of Melbourne14
TL;DR: The Murchison Widefield Array (MWA) as discussed by the authors is one of three Square Kilometre Array Precursor telescopes and is located at the MUR-astronomy Observatory in Western Australia, a location chosen for its extremely low levels of radio frequency interference.
Abstract: The Murchison Widefield Array (MWA) is one of three Square Kilometre Array Precursor telescopes and is located at the Murchison Radio-astronomy Observatory in the Murchison Shire of the mid-west of Western Australia, a location chosen for its extremely low levels of radio frequency interference. The MWA operates at low radio frequencies, 80-300 MHz, with a processed bandwidth of 30.72 MHz for both linear polarisations, and consists of 128 aperture arrays (known as tiles) distributed over a ∼3-km diameter area. Novel hybrid hardware/software correlation and a real-time imaging and calibration systems comprise the MWA signal processing backend. In this paper, the as-built MWA is described both at a system and sub-system level, the expected performance of the array is presented, and the science goals of the instrument are summarised. © 2013 Astronomical Society of Australia.
1,144 citations
••
TL;DR: The size of lipid-dependent organization of GPI-APs in live cells is investigated using homo and hetero-FRET-based experiments and an analysis of the statistical distribution of the clusters suggest a mechanism for functional lipid- dependent clustering of G PI- APs.
880 citations
••
TL;DR: It is shown that Berry's phase appears in a more general context than realized so far, using some ideas introduced by Pancharatnam in his study of the interference of polarized light to allow a meaningful comparison of the phase between any two nonorthogonal vectors in Hilbert space.
Abstract: It is shown that Berry's phase appears in a more general context than realized so far. The evolution of the quantum system need be neither unitary nor cyclic and may be interrupted by quantum measurements. A key ingredient in this generalization is the use of some ideas introduced by Pancharatnam in his study of the interference of polarized light, which, when carried over to quantum mechanics, allow a meaningful comparison of the phase between any two nonorthogonal vectors in Hilbert space.
830 citations
Authors
Showing all 1005 results
Name | H-index | Papers | Citations |
---|---|---|---|
Ramesh Narayan | 129 | 661 | 63628 |
P. Ajith | 107 | 372 | 70245 |
Abhay Ashtekar | 94 | 366 | 37508 |
Bala R. Iyer | 89 | 298 | 53943 |
K. G. Arun | 89 | 257 | 59100 |
Raghavan Srinivasan | 80 | 959 | 37821 |
Nat Gopalswamy | 73 | 550 | 20180 |
Chandra Kant Mishra | 72 | 171 | 45522 |
Barry C. Sanders | 67 | 560 | 18474 |
A. K. Sood | 59 | 445 | 21236 |
Ravi Subrahmanyan | 59 | 353 | 14244 |
John Katsaras | 55 | 220 | 9263 |
Rafael D. Sorkin | 52 | 218 | 11388 |
Avinash A. Deshpande | 51 | 237 | 10327 |
A. Jayaraman | 51 | 205 | 8321 |