14 citations · 51 across the 12 of their papers we have counts for
12 papers
Certification of two-qubit quantum systems with temporal inequality
Chellasamy Jebarathinam, Gautam Sharma, Sk Sazim +1
Self-testing of quantum devices based on observed measurement statistics is a method to certify quantum systems using minimal resources. In Ref. [Phys. Rev. \textbf{A} 101, 032106…
Negativity of Wigner distribution function as a measure of incompatibility
Jatin Ghai, Gautam Sharma, Sibasish Ghosh
Measurement incompatibility and the negativity of quasiprobability distribution functions are well-known non-classical aspects of quantum systems. Both of them are widely accepted…
Characterizing the generalized complementarity polytope with extractable information from MUBs
Gautam Sharma
Complementarity polytope is a geometric structure that exists in N2-1 dimensional space for an N dimensional Hilbert space. The existence of N + 1 mutually unbiased bases(MUBs) is…
A geometric way to find the measures of uncertainty from statistical divergences for discrete and finite probability distributions
Gautam Sharma, Sk Sazim
Exploiting the geometric nature of statistical divergences, we devise a way to define associated induced uncertainty measures for discrete and finite probability distributions. We…
Information leak and incompatibility of physical context: A modified approach
Arindam Mitra, Gautam Sharma, Sibasish Ghosh
A beautiful idea about the incompatibility of Physical Context(IPC) was introduced in Phys. Rev. A 102, 050201(R) (2020). Here, a context is defined as a set of a quantum state and…
Bloch sphere analog of qudits using Heisenberg-Weyl Operators
Gautam Sharma, Sibasish Ghosh, Sk Sazim
We study an analogous Bloch sphere representation of higher-level quantum systems using the Heisenberg-Weyl operator basis. We introduce a parametrization method that will allow us…
Creation of quantum coherence with general measurement processes
Sanuja D. Mohanty, Gautam Sharma, Sk Sazim +2
Quantum measurement not only can destroy coherence but also can create it. Here, we estimate the maximum amount of coherence, one can create under a complete non-selective measurem…
Robustness of interferometric complementarity under Decoherence
Gautam Sharma, Mohd Asad Siddiqui, Shiladitya Mal +2
Interferometric complementarity is known to be one of the most nonclassical manifestations of the quantum formalism. It is commonly known as wave-particle duality and has been stud…
Role of fine-grained uncertainty in determining the limit of preparation contextuality
Gautam Sharma, Sk Sazim, Shiladitya Mal
The optimal success probability of a communication game sets fundamental limitations on an operational theory. Quantum advantage of parity oblivious random access code (PORAC), a c…
Quantum Coherence, Coherent Information and Information Gain in Quantum Measurement
Gautam Sharma, Sk Sazim, Arun Kumar Pati
A measurement is deemed successful, if one can maximize the information gain by the measurement apparatus. Here, we ask if quantum coherence of the system imposes a limitation on t…
Quantum uncertainty relation based on the mean deviation
Gautam Sharma, Chiranjib Mukhopadhyay, Sk Sazim +1
Traditional forms of quantum uncertainty relations are invariably based on the standard deviation. This can be understood in the historical context of simultaneous development of q…
Complementarity Relation for Coherence and Disturbance
Gautam Sharma, Arun Kumar Pati
Quantum measurements necessarily disturb the state of physical system. Once we perform a complete measurement, the system undergoes decoherence and loses its coherence. If there is…