35 citations · 195 across the 14 of their papers we have counts for
14 papers
Experimental demonstration of one-sided device-independent self-testing of any pure two-qubit entangled state
Zhihao Bian, A. S. Majumdar, C. Jebaratnam +5
We demonstrate one-sided device-independent self-testing of any pure entangled two-qubit state based on a fine-grained steering inequality. The maximum violation of a fine-grained…
Superunsteerability as a quantifiable resource for random access codes assisted by Bell-diagonal states
C. Jebarathinam, Debarshi Das, Som Kanjilal +4
We show how nonclassical correlations in local bipartite states can act as a resource for quantum information processing. Considering the task of quantum random access codes (RAC)…
One-sided Device-independent Self-testing of any Pure Two-qubit Entangled State
Suchetana Goswami, Bihalan Bhattacharya, Debarshi Das +3
We consider the problem of -sided device-independent self-testing of any pure entangled two-qubit state based on steering inequalities which certify the presence of quantum stee…
Characterization of the quantumness of unsteerable tripartite correlations
Debarshi Das, C. Jebaratnam, Bihalan Bhattacharya +3
Quantumness for a bipartite unsteerable quantum correlation is operationally characterized by the notion of super-unsteerability. Super-unsteerability refers to the requirement of…
Operational characterization of quantumness of unsteerable bipartite states
Debarshi Das, Bihalan Bhattacharya, Chandan Datta +4
Recently, the quantumness of local correlations arising from separable states in the context of a Bell scenario has been studied and linked with superlocality [Phys. Rev. A {\bf 95…
Tripartite entanglement detection through tripartite quantum steering in one-sided and two-sided device-independent scenarios
C. Jebaratnam, Debarshi Das, Arup Roy +5
In the present work, we study tripartite quantum steering of quantum correlations arising from two local dichotomic measurements on each side in the two types of partially device-i…
Cost of Einstein-Podolsky-Rosen steering in the context of extremal boxes
Debarshi Das, Shounak Datta, C. Jebaratnam +1
Einstein-Podolsky-Rosen steering is a form of quantum nonlocality which is weaker than Bell nonlocality, but stronger than entanglement. Here we present a method to check Einstein-…
Local marginals ameliorate device independent witnessing of genuine entanglement
Some Sankar Bhattacharya, Biswajit Paul, Arup Roy +3
We consider the problem of determining the presence of genuine multipartite entanglement through the violation of Mermin's Bell-type inequality (MI). Though the violation of MI can…
Operational nonclassicality of local multipartite correlations in the limited-dimensional simulation scenario
C. Jebaratnam, Debarshi Das, Suchetana Goswami +2
For a bipartite local quantum correlation, superlocality refers to the requirement for a larger dimension of the random variable in the classical simulation protocol than that of t…
Absolute Non-Violation of a Three-Setting Steering Inequality by Two-Qubit States
Some Sankar Bhattacharya, Amit Mukherjee, Arup Roy +5
Steerability is a characteristic nonlocal trait of quantum states lying in between entanglement and Bell nonlocality. A given quantum state is considered to be steerable if it viol…
Nonclassicality of local bipartite correlations
C. Jebaratnam, S. Aravinda, R. Srikanth
Simulating quantum nonlocality and steering requires augmenting pre-shared randomness with non-vanishing communication cost. This prompts the question of how one may provide such a…
Characterizing quantum correlations in the nonsignaling framework
C. Jebaratnam
Quantum correlations forms a subset of the set of nonsignaling boxes. This allows us to characterize quantum correlations as a convex combination of the extremal boxes of the nonsi…
Detecting genuine multipartite entanglement in steering scenarios
C. Jebaratnam
Einstein-Podolsky-Rosen (EPR) steering is a form of quantum nonlocality which is intermediate between entanglement and Bell nonlocality. EPR steering is a resource for quantum key…
Study of nonclassicality in tripartite correlations beyond standard Bell nonlocality paradigm
C. Jebaratnam
In the nonsignaling framework, nonclassicality in correlation arising from two spatially separated input-output devices gets manifested, solely, through its \emph{nonlocal} behavio…