257 citations · 361 across the 14 of their papers we have counts for
14 papers
Operational Concealment of Measurement Incompatibility by Quantum Channels: Rank Loss versus Contraction
Mohd Asad Siddiqui, Zizhu Wang
Quantum measurements can remain incompatible yet become impossible to certify when all probe states first pass through a quantum channel. We formulate this loss of certifiability a…
Exact Quantum Maxima of the -Cycle Overlap Inequalities
Mohd Asad Siddiqui
We extend the three-state overlap analysis to determine the exact quantum maximum over finite-dimensional pure-state realizations of the -cycle overlap inequalities, $S_n^{\max}…
Complementarity Beyond Definite Causal Order
Mohd Asad Siddiqui, Md Qutubuddin, Tabish Qureshi
Wave--particle duality is a cornerstone of quantum mechanics, traditionally formulated under definite causal order. We investigate how complementarity is modified when the temporal…
Mermin and Svetlichny inequalities for non-projective measurement observables
Mohd Asad Siddiqui, Sk Sazim
The necessary and sufficient criteria for violating the Mermin and Svetlichny inequalities by arbitrary three-qubit states are presented. Several attempts have been made, earlier,…
Absolute fully entangled fraction from spectrum
Tapaswini Patro, Kaushiki Mukherjee, Mohd Asad Siddiqui +2
Fully entangled fraction (FEF) is a significant figure of merit for density matrices. In bipartite quantum systems, the threshold value FEF , carries signi…
Multipath wave-particle duality with a path detector in a quantum superposition
Mohd Asad Siddiqui, Tabish Qureshi
According to Bohr's principle of complementarity, a quanton can behave either as a wave or a particle, depending on the choice of the experimental setup. Some recent two-path inter…
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…
Tight upper bound for the maximal expectation value of the Mermin operators
Mohd Asad Siddiqui, Sk Sazim
The violation of the Mermin inequality (MI) for multipartite quantum states guarantees the existence of nonlocality between either few or all parties. The detection of optimal MI v…
Wave-Particle Duality in N-Path Interference
Tabish Qureshi, Mohd Asad Siddiqui
Bohr's principle of complementarity, in the context of a two-slit interference experiment, is understood as the quantitative measures of wave and particle natures following a duali…
Duality of Quantum Coherence and Path Distinguishability
Manabendra Nath Bera, Tabish Qureshi, Mohd Asad Siddiqui +1
We derive a generalized wave-particle duality relation for arbitrary multipath quantum interference phenomena. Beyond the conventional notion of the wave nature of a quantum system…
Three-Slit Ghost Interference and Nonlocal Duality
Mohd Asad Siddiqui
A three-slit ghost interference experiment with entangled photons is theoretically analyzed using wave-packet dynamics. A non-local duality relation is derived which connects the p…
A Nonlocal Wave-Particle Duality
Mohd Asad Siddiqui, Tabish Qureshi
We propose and analyze a modified ghost-interference experiment, and show that revealing the particle-nature of a particle passing through a double-slit hides the wave-nature of a…
Three-Slit Interference: A Duality Relation
Mohd Asad Siddiqui, Tabish Qureshi
The issue of interference and which-way information is addressed in the context of 3-slit interference experiments. A new path distinguishability is introduced, ba…
Quantum Key Distribution with Qubit Pairs
Mohd Asad Siddiqui, Tabish Qureshi
We propose a new Quantum Key Distribution method in which Alice sends pairs of qubits to Bob, each in one of four possible states. Bob uses one qubit to generate a secure key and t…