activity
20152026
most citedThe Quantum Cheshire Cat effect: Theoretical basis and observational implications

30 citations · 80 across the 17 of their papers we have counts for

collaborators

18 papers

quant-ph2026

Noise robust self testing from genuine local operation shared randomness multipartite nonlocality Tests

Som Kanjilal

Violation of the -partite inequality introduced in Phys. Rev. Lett. 129, 150401 (2022) for genuine multipartite nonlocality under local operations and shared randomness (LOSR) r…

quant-ph2026

Coherence as a resource for -box and quantum pigeonhole paradoxes

Som Kanjilal, Rafael Wagner, Ernesto F. Galvão

Pre- and post-selection (PPS) paradoxes are striking demonstrations of quantum nonclassicality. Logical PPS paradoxes, where inferences made with the Aharonov-Bergmann-Lebowitz (AB…

quant-ph2026

Incompatibility assisted Zeno-like confinement enables unbounded sharing of nonlocality

Prerna Rao, Som Kanjilal

To enable sequential sharing of Bell-nonlocality by an unbounded number of copies, each copy must satisfy two requirements. First, the measurements must be incompatible to extract…

quant-ph2026

Unbounded Communication Power of a Qubit

Souradeep Sasmal, Som Kanjilal, Debarshi Das

Quantum mechanics enables information-processing advantages even at the level of a single qubit. A paradigmatic example is the 21 random access code (RAC), where a qubit outpe…

quant-ph2024★ 5 cited

Towards Necessary and sufficient state condition for violation of a multi-settings Bell inequality

Swapnil Bhowmick, Som Kanjilal, A. K. Pan +1

High dimensional quantum entanglement and the advancements in their experimental realization provide a playground for fundamental research and eventually lead to quantum technologi…

quant-ph2022★ 1 cited

Entanglement Meter: Estimation of entanglement with single copy in Interferometer

Som Kanjilal, Vivek Pandey, Arun Kumar Pati

Efficient certification and quantification of high dimensional entanglement of composite systems are challenging both theoretically as well as experimentally. Here, we demonstrate…

quant-ph2022

Unambiguous joint detection of spatially separated properties of a single photon in the two arms of an interferometer

Surya Narayan Sahoo, Sanchari Chakraborti, Som Kanjilal +3

The quantum superposition principle implies that a particle entering an interferometer evolves by simultaneously taking both arms. If a non-destructive, minimally-disturbing intera…

quant-ph2022★ 2 cited

Relating an entanglement measure with statistical correlators for two-qudit mixed states using only a pair of complementary observables

Simanraj Sadana, Som Kanjilal, Dipankar Home +1

We focus on characterizing entanglement of high dimensional bipartite states using various statistical correlators for two-qudit mixed states. The salient results obtained are as f…

quant-ph2021★ 13 cited

Ability of unbounded pairs of observers to achieve quantum advantage in random access codes with a single pair of qubits

Debarshi Das, Arkaprabha Ghosal, Ananda G. Maity +2

Complications in preparing and preserving quantum correlations stimulate recycling of a single quantum resource in information processing and communication tasks multiple times. He…

quant-ph2019★ 2 cited

Sufficient conditions for quantum advantage in random access code protocols with two-qubit states

Som Kanjilal, C Jebarathinam, Tomasz Paterek +1

Random access code (RAC) is an important communication protocol to obtain information about a randomly specified substring of an n-bit string, while only having limited information…

quant-ph2018★ 10 cited

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)…

quant-ph2018★ 9 cited

Remote State Preparation using Correlations beyond Discord

Som Kanjilal, Aiman Khan, C. Jebarathinam +1

In recent years, exploring the possible use of separable states as resource for achieving quantum information processing(QIP) tasks has been gaining increasing significance. In thi…

quant-ph2018★ 3 cited

Revealing the quantitative relation between simultaneous correlations in complementary bases and quantum steering for two-qubit Bell diagonal states

C. Jebarathinam, Aiman Khan, Som Kanjilal +1

The present work is motivated by the question as to what aspect of correlation entailed by the two-qubit state serves as the appropriate quantitative resource for steering. To this…

quant-ph2017

Comment on "Strong Measurements Give a Better Direct Measurement of the Quantum Wave Function"

Varad R. Pande, Som Kanjilal, Debmalya Das

This is a comment on "Strong Measurements Give a Better Direct Measurement of the Quantum Wave Function" which was published as PRL 116, 040502 (2016). We show that there is crucia…

quant-ph2017

Quantum information transfer using weak measurements and any non-product resource state

Varad R. Pande, Som Kanjilal

Information about an unknown quantum state can be encoded in weak values of projectors belonging to a complete eigenbasis. We present a protocol that enables one party -- Bob -- to…

quant-ph2017★ 30 cited

The Quantum Cheshire Cat effect: Theoretical basis and observational implications

Q. Duprey, S. Kanjilal, Urbasi Sinha +2

The Quantum Cheshire Cat (QCC) is an effect introduced recently within the Weak Measurements framework. The main feature of the QCC effect is that a property of a quantum particle…

quant-ph2016

Nonlocality in Remote State Preparation vis-a-vis Teleportation

Aiman Khan, Som Kanjilal, Dipankar Home

The hitherto unexplored nonlocality of quantum correlations in the information transfer protocol of remote state preparation (RSP) is investigated in terms of a unified nonlocality…

quant-ph2015★ 5 cited

Manifestation of pointer state correlations in complex weak values of quantum observables

Som Kanjilal, Girish Muralidhara, Dipankar Home

In the weak measurement (WM) scenario involving weak interaction and postselection by projective measurement, the empirical significance of weak values is manifested in terms of sh…