62 citations · 239 across the 16 of their papers we have counts for
17 papers
Impact of the spherical harmonic mode with memory on parameter estimation for ground-based detectors
Maria Rosselló-Sastre, Sascha Husa, Sayantani Bera +1
We recently presented an efficient and accurate waveform model for the spherical harmonic mode including both the displacement memory contribution and the ringdown oscillat…
Fast frequency-domain gravitational waveforms for precessing binaries with a new twist
Marta Colleoni, Felip A. Ramis Vidal, Cecilio García-Quirós +2
Gravitational waveform (GW) models are a core ingredient for the analysis of compact binary mergers observed by current ground-based interferometers. We focus here on a specific cl…
A waveform model for the missing quadrupole mode from black hole coalescence: memory effect and ringdown of the spherical harmonic
Maria Rosselló-Sastre, Sascha Husa, Sayantani Bera
In this paper we describe a model for the spherical harmonic mode of the gravitational wave signal emitted by the coalescence of binary black holes, in particular,…
Testing Gravity with Binary Black Hole Gravitational Waves
Marta Colleoni, N. V. Krishnendu, Pierre Mourier +2
General Relativity (GR) remains the most accurate theory of gravity to date. It has passed many experimental tests in the Solar System as well as binary pulsar, cosmological and gr…
Bayesian framework to infer the Hubble constant from the cross-correlation of individual gravitational wave events with galaxies
Tathagata Ghosh, Surhud More, Sayantani Bera +1
Gravitational waves (GWs) from the inspiral of binary compact objects offer a one-step measurement of the luminosity distance to the event, which is essential for the measurement o…
Prospects of Probing Dark Matter Condensates with Gravitational Waves
Shreya Banerjee, Sayantani Bera, David F. Mota
The Lambda-Cold Dark Matter model explains cosmological observations most accurately till date. However, it is still plagued with various shortcomings at galactic scales. Models of…
Incompleteness Matters Not: Inference of from BBH-galaxy cross-correlations
Sayantani Bera, Divya Rana, Surhud More +1
We show how the angular clustering between gravitational-wave standard sirens and galaxies with known redshifts allows an inference of the Hubble constant, regardless of whether th…
Growth of Linear Perturbations in a Universe with Superfluid Dark Matter
Shreya Banerjee, Sayantani Bera, David F. Mota
The Lambda-Cold Dark Matter (LCDM) model agrees with most of the cosmological observations, but has some hindrances from observed data at smaller scales such as galaxies. Recently,…
Stability of charged particles inside a Paul trap with spontaneous localization dynamics
Sayantani Bera, Shreya Banerjee
Paul traps are ion traps that are widely used in spectroscopic experiments to confine and stabilize a charged particle within a small region using oscillating electric fields. The…
Space-time fluctuations and a stochastic Schrödinger-Newton equation
Sayantani Bera, Priyanka Giri, Tejinder P. Singh
We propose a stochastic modification of the Schrödinger-Newton equation which takes into account the effect of extrinsic spacetime fluctuations. We use this equation to demonstrate…
Quantum nonlocality, and the end of classical space-time
Shreya Banerjee, Sayantani Bera, T. P. Singh
Quantum non-local correlations and the acausal, spooky action at a distance suggest a discord between quantum theory and special relativity. We propose a resolution for this discor…
Quantum discord as a tool for comparing collapse models and decoherence
Shreya Banerjee, Sayantani Bera, Tejinder P. Singh
The quantum to classical transition maybe caused by decoherence or by dynamical collapse of the wave-function. We propose quantum discord as a tool, 1) for comparing and contrastin…
Constraints on fourth order gravity from binary pulsar and gravitational waves
Shreya Banerjee, Sayantani Bera, Srimanta Banerjee +1
We have earlier proposed a fourth order gravity model as a possible explanation for late time cosmic acceleration, and for flattened galaxy rotation curves. The model has a free le…
Cosmological Constant, Quantum Measurement, and the Problem of Time
Shreya Banerjee, Sayantani Bera, Tejinder P. Singh
Three of the big puzzles of theoretical physics are the following: (i) There is apparently no time evolution in the dynamics of quantum general relativity, because the allowed quan…
Stochastic modification of the Schrodinger-Newton equation
Sayantani Bera, Ravi Mohan, Tejinder P. Singh
The Schrödinger-Newton [SN] equation describes the effect of self-gravity on the evolution of a quantum system, and it has been proposed that gravitationally induced decoherence dr…
A proposal for the experimental detection of CSL induced random walk
Sayantani Bera, Bhawna Motwani, Tejinder P. Singh +1
Continuous Spontaneous Localization (CSL) is one possible explanation for dynamically induced collapse of the wave-function during a quantum measurement. The collapse is mediated b…
A comparison between models of gravity induced decoherence
Sayantani Bera, Sandro Donadi, Kinjalk Lochan +1
It has been suggested in the literature that spatial coherence of the wave function can be dynamically suppressed by fluctuations in the spacetime geometry. These fluctuations repr…