404 citations · 1.6k across the 100 of their papers we have counts for
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Multiphoton Bell-type inequality: a tool to unearth nonlocality of continuous variable quantum optical systems
Chandan Kumar, Gaurav Saxena, Arvind
We consider a multiphoton Bell-type inequality to study nonlocality in four-mode continuous variable systems, which goes beyond two-photon states and can be applied to mixed as wel…
Using a Lindbladian approach to model decoherence in two coupled nuclear spins via correlated phase-damping and amplitude damping noise channels
Harpreet Singh, Arvind, Kavita Dorai
In this work, we studied the relaxation dynamics of coherences of different order present in a system of two coupled nuclear spins. We used a previously designed model for intrinsi…
Properties of Spin and Orbital Angular Momenta of Light
Arvind, S. Chaturvedi, N. Mukunda
This paper analyzes the algebraic and physical properties of the spin and orbital angular momenta of light in the quantum mechanical framework. The consequences of the fact that th…
Increasing distillable key rate from bound entangled states by using local filtration
Mayank Mishra, Ritabrata Sengupta, Arvind
We show the enhancement of distillable key rate for quantum key distribution(QKD), by local filtering, for several bound entangled states. Through our work it becomes evident that…
A comparative study of system size dependence of the effect of non-unitary channels on different classes of quantum states
Geetu Narang, Shruti Dogra, Arvind
We investigate the effect of different types of non-unitary quantum channels on multi-qubit quantum systems. For an -qubit system and a particular channel, in order to draw unbi…
Symplectic group methods and the Arthurs Kelly model of measurement in quantum mechanics
Arvind, S. Chaturvedi, N. Mukunda
We study the use of methods based on the real symplectic groups in the analysis of the Arthurs-Kelly model of proposed simultaneous measurements of position an…