63 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- S.N. Bose National Centre for Basic SciencesIN10 papers
- Institute of Physics, BhubaneshwarIN5 papers
- Indian Centre for Space PhysicsIN3 papers
- Indian Institute of Engineering Science and Technology, ShibpurIN3 papers
- Indian Institute of Technology JodhpurIN3 papers
- Indian Statistical InstituteIN2 papers
- Jadavpur UniversityIN2 papers
- National Center for Theoretical Sciences, Physics Division2 papers
- National Taiwan UniversityTW2 papers
- University of Hong KongHK2 papers
- University of Notre DameUS2 papers
- Balochistan University of Information Technology, Engineering and Management SciencesPK1 paper
31 papers
Exploring the Effects of Data Augmentation for Drivable Area Segmentation
Srinjoy Bhuiya, Ayushman Kumar, Sankalok Sen
The real-time segmentation of drivable areas plays a vital role in accomplishing autonomous perception in cars. Recently there have been some rapid strides in the development of im…
Understanding Partial PT symmetry as weighted composition conjugation in Reproducing Kernel Hilbert Space :An application to non-hermitian Bose-Hubbard type Hamiltonian in Fock space
Arindam Chakraborty
A new kind of symmetry behaviour introduced as partialPT-symmetry is investigated in a typical Fock space setting understood as a Reproducing Kernel Hilbert Space (RKHS). The same…
A New Boson realization of Fusion Polynomial Algebras in Non-Hermitian Quantum Mechanics : -deformed generators, Partial -symmetry and Higgs algebra
Arindam Chakraborty
A -deformed version of algebra with non-hermitian generators has been obtained from a bi-orthogonal system of vectors in . The related Jordan-Schwinger(J-S) ma…
Detecting Two Qubit Both-Way Positive Discord States
Kaushiki Mukherjee, Sumana Karmakar, Biswajit Paul +1
Quantum discord plays a pragmatic role in analyzing nonclassical feature of quantum correlations beyond entanglement. It is used in several information processing protocols which l…
Unconventional localization phenomena in a spatially non-uniform disordered material
Madhuparna Banerjee, Baisakhi Mal, Santanu K. Maiti
A completely opposite behavior of electronic localization is revealed in a spatially non-uniform disordered material compared to the traditional spatially uniform disordered one. T…
Images and Spectra of Time Dependent Two Component Advective Flow in Presence of Outflows
Arka Chatterjee, Sandip K. Chakrabarti, Himadri Ghosh +1
Two Component Advective Flow (TCAF) successfully explains the spectral and tem- poral properties of outbursting or persistent sources. Images of static TCAF with Compton cloud or C…
Strong Lensing of a Regular Black Hole with an Electrodynamics Source
Tuhina Manna, Farook Rahaman, Sabiruddin Molla +2
In this paper we have investigated the gravitational lensing phenomenon in the strong field regime for a regular, charged, static, non-linear black hole having a electrodynamics so…
Temporal Evolution of Photon Energy emitted from Two Component Advective Flows: Origin of Time Lag
Arka Chatterjee, Sandip K. Chakrabarti, Himadri Ghosh
X-Ray time lag of black hole candidates contains important information regarding the emission geometry. Recently, study of time lags from observational data revealed very intriguin…
Several Trade off Features of Quantum Steering in Distributed Scenario
Arup Roy, Some Sankar Bhattacharya, Amit Mukherjee +3
In the present work, we address the question of how bipartite steering violation takes place among multi-partite systems (where each sub-system have Hilbert space dimension restric…
Fast Detection of Community Structures using Graph Traversal in Social Networks
Partha Basuchowdhuri, Satyaki Sikdar, Varsha Nagarajan +3
Finding community structures in social networks is considered to be a challenging task as many of the proposed algorithms are computationally expensive and does not scale well for…
Images and Spectral Properties of Two Component Advective Flows Around Black Holes: Effects of Photon Bending
Arka Chatterjee, Sandip K. Chakrabarti, Himadri Ghosh
Two component advective flow (TCAF) successfully explains spectral and timing properties of black hole candidates. We study the nature of photon trajectories in the vicinity of a S…
Bell-CHSH Violation Under Global Unitary Operations: Necessary and Sufficient conditions
Nirman Ganguly, Amit Mukherjee, Arup Roy +3
The relation between Bell-CHSH violation and factorization of Hilbert space is considered here. That is, a state which is local in the sense of the Bell-CHSH inequality under a cer…
Quantum Anomalous Hall and Half-metallic Phases in Ferromagnetic (111) Bilayers of 4d and 5d Transition Metal Perovskites
Hirak Kumar Chandra, Guang-Yu Guo
Extraordinary electronic phases can form in artificial oxide heterostructures, which will provide a fertile ground for new physics and also give rise to novel device functions. Bas…
Quantum confinement : A route to enhance the Curie temperature of Mn doped GaAs
Basudeb Mandal, Hirak Kumar Chandra, Priya Mahadevan
The electronic structure of Mn doped GaAs and GaN have been examined within a multiband Hubbard model. By virtue of the positioning of the Mn d states, Mn doped GaAs is found to be…
Topological insulator associated with quantum anomalous Hall phase in ferromagnetic perovskite superlattices
Hirak Kumar Chandra, Guang-Yu Guo
We do a search for topological insulators which are associated with ferromagnetic ordering and show anomalous quantum Hall effect, among transition metal oxide superlattices taking…
Witness of mixed separable states useful for entanglement creation
Nirman Ganguly, Jyotishman Chatterjee, A. S. Majumdar
Absolutely separable states form a special subset of the set of all separable states, as they remain separable under any global unitary transformation unlike other separable states…
Comments on the reach of INO experiment: JHEP 1304, 009 (2013) and arXiv:1303.2534 [hep-ph]
Abhijit Samanta
In JHEP {\bf 1304}, 009 (2013) and arXiv:1303.2534 [hep-ph] the {\it reach of INO experiment} for determination of neutrino mass hierarchy and the sensitivity to both a…
A cloned qutrit and its utility in information processing tasks
Sovik Roy, Nirman Ganguly, Atul Kumar +2
We, in this paper, analyze the efficacy of an output as a resource from a universal quantum cloning machine in information processing tasks such as teleportation and dense coding.…
Construction of optimal teleportation witness operators from entanglement witnesses
Satyabrata Adhikari, Nirman Ganguly, A. S. Majumdar
Teleportation witnesses are hermitian operators which can identify useful entanglement for quantum teleportation. Here we provide a systematic method to construct teleportation wit…
The quark-lepton unification : LHC data and neutrino masses
Abhijit Samanta
The recent discovery of nonzero (equal to Cabbibo angle up to a factor of ), the masses of supersymmetric particles $\gapp$ TeV from LHC data, and the sum…
Entanglement witness operator for quantum teleportation
Nirman Ganguly, Satyabrata Adhikari, A. S. Majumdar +1
The ability of entangled states to act as resource for teleportation is linked to a property of the fully entangled fraction. We show that the set of states with their fully entang…
Common entanglement witnesses and their characteristics
Nirman Ganguly, Satyabrata Adhikari, A. S. Majumdar
We investigate the issue of finding common entanglement witness for certain class of states and extend this study to the case of Schmidt number witnesses. We also introduce the not…
Energy dissipation in wave propagation in general relativistic plasma
Ajanta Das, S. Chatterjee
Based on a recent communication by the present authors the question of energy dissipation in magneto hydrodynamical waves in an inflating background in general relativity is examin…
Witness for edge states and its characteristics
Nirman Ganguly, Satyabrata Adhikari
Edge states lying at the edge of PPT entangled states have a very intriguing existence and their detection is equally interesting. We present here a new witness for detection of ed…