19 citations · 168 across the 20 of their papers we have counts for
21 papers
Quantum Correlations in the Decay of meson and Entanglement Entropy
Divya Sharma, Vaibhav Rawoot, Sudip Kumar Haldar
We present a phenomenological study of quantum correlations in the decay of mesons into a system of two vector mesons. The decay of the meson into two vector mesons con…
Interplay of asymmetry and fragmentation in the many-body tunneling dynamics of two-dimensional bosonic Josephson junctions
Anal Bhowmik, Rhombik Roy, Sudip Kumar Haldar
It is well known that the many-body tunneling of a bosonic condensate leads to (longitudinal) fragmentation along the tunneling direction. In this work, we prepare the initial grou…
Creating two-qudit maximally entangled quantum link through bulk
Keshav Das Agarwal, Sudip Kumar Haldar, Aditi Sen De
We design a setup for creating almost maximally entangled two-qudit link between distant nodes which are weakly coupled with the interacting spin-s bulk (processor). We exhibit tha…
Many-body effects in a composite bosonic Josephson junction
Sudip Kumar Haldar, Anal Bhowmik
In standard bosonic Josephson junctions (BJJs), particles tunnel between two single-well potentials linked by a finite barrier. The dynamics of standard BJJs have been extensively…
Predicting topological quantum phase transition from dynamics via multisite entanglement
Leela Ganesh Chandra Lakkaraju, Sudip Kumar Haldar, Aditi Sen De
An exactly solvable Kitaev model in a two-dimensional square lattice exhibits a topological quantum phase transition which is different from the symmetry-breaking transition at zer…
Impact of the transverse direction on the many-body tunneling dynamics in a two-dimensional bosonic Josephson junction
Anal Bhowmik, Sudip Kumar Halder, Ofir E. Alon
Tunneling in a many-body system appears as one of the novel implications of quantum physics, in which particles move in space under an otherwise classically-forbidden potential bar…
Relaxation of Shannon entropy for trapped interacting bosons with dipolar interactions
S. Bera, S. K. Haldar, B. Chakrabarti +2
We study the dynamics of dipolar bosons in an external harmonic trap. We monitor the time evolution of the occupation in the natural orbitals and normalized first- and second-order…
Many-body quantum dynamics of an asymmetric bosonic Josephson junction
Sudip Kumar Haldar, Ofir E. Alon
The out-of-equilibrium quantum dynamics of an interacting Bose gas trapped in a 1D asymmetric double-well potential is studied by solving the many-body Schrödinger equation numeric…
Impact of the range of the interaction on the quantum dynamics of a bosonic Josephson junction
Sudip Kumar Haldar, Ofir E. Alon
The out-of-equilibrium quantum dynamics of a bosonic Josephson junction (BJJ) with long-range interaction is studied in real space by solving the time-dependent many-body Schröding…
Fidelity decay and entropy production in many-particle systems after random interaction quench
Sudip Kumar Haldar, N. D. Chavda, Manan Vyas +1
We analyze the effect of spin degree of freedom on fidelity decay and entropy production of a many-particle fermionic(bosonic) system in a mean-field, quenched by a random two-body…
Structural and quantum properties of van der Waals cluster near the unitary regime
M. L. Lekala, B. Chakrabarti, S. K. Haldar +2
We study the structural and several quantum properties of three-dimensional bosonic cluster interacting through van der Waals potential at large scattering length. We use Faddeev-t…
Use of two-body correlated basis functions with van der Waals interaction to study the shape-independent approximation for a large number of trapped interacting bosons
M. L. Lekala, B. Chakrabarti, T. K. Das +4
We study the ground state and the low-lying excitations of a trapped Bose gas in an isotropic harmonic potential for very small () to very large () particle numb…
Condensate fraction and critical temperature of interacting Bose gas in anharmonic trap
Sudip Kumar Haldar, Barnali Chakrabarti, Satadal Bhattacharyya +1
By using a correlated many body method and using the realistic van der Waals potential we study several statistical measures like the specific heat, transition temperature and the…
Level spacing statistics and spectral correlations in the diffuse van der Waals clusters
Sudip Kumar Haldar, Barnali Chakrabarti, N. D. Chavda +3
We present a statistical analysis of eigenenergies and discuss several measures of spectral fluctuations and spectral correlations for the van der Waals clusters of different sizes…
Correlated many-body calculation to study characteristics of Shannon information entropy for ultracold trapped interacting bosons
Sudip Kumar Haldar, Barnali Chakrabarti, Tapan Kumar Das +1
A correlated many-body calculation is presented to characterize the Shannon information entropy of trapped interacting bosons. We reformulate the one-body Shannon information entro…
Macroscopic quantum many-body tunneling of attractive Bose-Einstein condensate in anharmonic trap
Sudip Kumar Haldar, Pankaj Debnath, Barnali Chakrabarti
We study the stability of attractive atomic Bose-Einstein condensate and the macroscopic quantum many-body tunneling (MQT) in the anharmonic trap. We utilize correlated two-body ba…
Supersymmetric isospectral formalism for the calculation of near-zero energy states: application to the very weakly bound He trimer excited state
Sudip Kumar Haldar, Barnali Chakrabarti, Tapan Kumar Das
We propose a novel mathematical approach for the calculation of near-zero energy states by solving potentials which are isospectral with the original one. For any potential, famili…
Spectral fluctuation and noise in the energy level statistics of interacting trapped bosons
Kamalika Roy, Barnali Chakrabarti, Anindya Biswas +2
It has been recently shown numerically that the transition from integrability to chaos in quantum systems and the corresponding spectral fluctuations are characterized by $\frac{1}…
Dynamical features of Shannon information entropy of bosonic cloud in a tight trap
Sudip Kumar Haldar, Barnali Chakrabarti
We calculate Shannon information entropy of trapped interacting bosons in both the position and momentum spaces, and respectively. The total entropy maintains the fucti…
Energy level statistics of interacting trapped bosons
Barnali Chakrabarti, Anindya Biswas, V. K. B. Kota +2
It is an well established fact that statistical properties of energy level spectra are the most efficient tool to characterize nonintegrable quantum systems. The study of statistic…
Resonance States and Quantum Tunneling of Bose Einstein condensates in a 3D shallow trap
Sudip Kumar Haldar, Barnali Chakrabarti, Tapan Kumar Das
A correlated quantum many-body method is applied to describe resonance states of atomic Bose-Einstein condensates (BEC) in a realistic shallow trap (as opposed to infinite traps co…