131 citations · 690 across the 20 of their papers we have counts for
20 papers
Observational properties of a bright type Iax SN 2018cni and a faint type Iax SN 2020kyg
Mridweeka Singh, Devendra. K. Sahu, Raya Dastidar +29
We present the optical photometric and spectroscopic analysis of two type Iax SNe 2018cni and 2020kyg. SN 2018cni is a bright type Iax SN (M = 17.810.21 mag) whe…
SN 2020sck: deflagration in a carbon-oxygen white dwarf
Anirban Dutta, D. K. Sahu, G. C. Anupama +7
We present optical UBVRI photometry and low-to-medium resolution spectroscopic observations of type Iax SN 2020sck spanning -5.5 d to +67 d from maximum light in the B-band. From t…
Intermediate Luminosity Type Iax SN 2019muj With Narrow Absorption Lines: Long-Lasting Radiation Associated With a Possible Bound Remnant Predicted by the Weak Deflagration Model
Miho Kawabata, Keiichi Maeda, Masayuki Yamanaka +23
We present comprehensive spectroscopic and photometric analyses of the intermediate luminosity Type Iax supernova (SN Iax) 2019muj based on multi-band datasets observed through the…
SN 2017hpa: A carbon-rich type Ia supernova
Anirban Dutta, Avinash Singh, G. C. Anupama +2
We present the optical (UBVRI) and ultraviolet (Swift-UVOT) photometry, and optical spectroscopy of Type Ia supernova SN 2017hpa. We study broadband UV+optical light curves and low…
SN 2020ank: a bright and fast-evolving H-deficient superluminous supernova
Amit Kumar, Brajesh Kumar, S. B. Pandey +7
We investigate the observational properties of a hydrogen-deficient superluminous supernova (SLSN) SN 2020ank (at z = 0.2485), with the help of early phase observations carried out…
Kilonova Luminosity Function Constraints based on Zwicky Transient Facility Searches for 13 Neutron Star Mergers
Mansi M. Kasliwal, Shreya Anand, Tomas Ahumada +100
We present a systematic search for optical counterparts to 13 gravitational wave (GW) triggers involving at least one neutron star during LIGO/Virgo's third observing run. We searc…
SN 2018hna: 1987A-like supernova with a signature of shock breakout
Avinash Singh, D. K. Sahu, G. C. Anupama +22
High cadence ultraviolet, optical and near-infrared photometric and low-resolution spectroscopic observations of the peculiar Type II supernova (SN) 2018hna are presented. The earl…
GROWTH on S190425z: Searching thousands of square degrees to identify an optical or infrared counterpart to a binary neutron star merger with the Zwicky Transient Facility and Palomar Gattini IR
Michael W. Coughlin, Tomás Ahumada, Shreya Anand +76
The third observing run by LVC has brought the discovery of many compact binary coalescences. Following the detection of the first binary neutron star merger in this run (LIGO/Virg…
Generating a second-order topological insulator with multiple corner states by periodic driving
Ranjani Seshadri, Anirban Dutta, Diptiman Sen
We study the effects of periodic driving on a variant of the Bernevig-Hughes-Zhang (BHZ) model defined on a square lattice. In the absence of driving, the model has both topologica…
Doping induced site-selective Mott insulating phase in LaFeO
S. Jana, S. K. Panda, D. Phuyal +17
Tailoring transport properties of strongly correlated electron systems in a controlled fashion counts among the dreams of materials scientists. In copper oxides, varying the carrie…
Many-body localized phase of bosonic dipoles in a tilted optical lattice
Anirban Dutta, Subroto Mukerjee, K. Sengupta
We chart out the ground state phase diagram and demonstrate the presence of a many-body localized (MBL) phase for an experimentally realizable one-dimensional (1D) constrained dipo…
Probing the role of long-range interactions in the dynamics of a long-range Kitaev Chain
Anirban Dutta, Amit Dutta
We study the role of long-range interactions on the non-equilibrium dynamics considering a long-range Kitaev chain in which superconducting term decays with distance between two si…
Anti-Kibble-Zurek Behavior in Crossing the Quantum Critical Point of a Thermally Isolated System Driven by a Noisy Control Field
Anirban Dutta, Armin Rahmani, Adolfo del Campo
We show that a thermally isolated system driven across a quantum phase transition by a noisy control field exhibits anti-Kibble-Zurek behavior, whereby slower driving results in hi…
Weakening of the spin density wave gap at low temperatures in SrFeAs single crystals
Anirban Dutta, Neeraj Kumar, A. Thamizhavel +1
We report on temperature dependent scanning tunneling microscopy and spectroscopy studies of undoped SrFeAs single crystals from 6 K to 292 K. Resistivity data show spi…
Electronic inhomogeneities in the superconducting phase of CaFe1.96Ni0.04As2 single crystals
Anirban Dutta, Neeraj Kumar, A. Thamizhavel +1
Superconductivity in Iron-Arsenic based pnictides emerges in close proximity to an antiferromagnetic (AFM)ordered parent state and the AFM phase overlaps with superconducting (SC)…
Role of trap-induced scales in non-equilibrium dynamics of strongly interacting trapped bosons
Anirban Dutta, Rajdeep Sensarma, K. Sengupta
We use a time-dependent hopping expansion technique to study the non-equilibrium dynamics of strongly interacting bosons in an optical lattice in the presence of a harmonic trap ch…
Statistics of work distribution in periodically driven closed quantum systems
Anirban Dutta, Arnab Das, K. Sengupta
We study the statistics of the work distribution in a dimensional closed quantum system with linear dimension subjected to a periodic drive with frequency . We…
Study of unconventional superfluid phases and the phase dynamics in spin-orbit coupled bose system
Anirban Dutta, Saptarshi Mandal
We study the phase distribution and its dynamics in spin-orbit coupled two component ultracold Bosons for finite size system. Using an inhomogeneous meanfield analysis we demonstra…
A projection operator approach to the Bose-Hubbard model
Anirban Dutta, C. Trefzger, K. Sengupta
We develop a projection operator formalism for studying both the zero temperature equilibrium phase diagram and the non-equilibrium dynamics of the Bose-Hubbard model. Our work, wh…
Evidence of mobile carriers with Charge Ordering gap in Epitaxial PrCaMnO Thin Films
Udai Raj Singh, S. Chaudhuri, Anirban Dutta +2
Epitaxial thin films of charge-ordered PrCaMnO have been studied using variable temperature Scanning tunneling microscopy and spectroscopy (STM/STS). The…