20 citations · 38 across the 16 of their papers we have counts for
16 papers
Average entropy of Bogoliubov-Kubo-Mori random state ensemble
Sohail, Lu Wei
Random states play a foundational role in different branches of modern quantum science. In this work, we study a recently proposed random state ensemble induced from von Neumann en…
Diagonal Unitary Covariant Superchannels
Dariusz Chruściński, Vivek Pandey, Sohail
We present a complete characterization of diagonal unitary covariant (DU-covariant) superchannels, i.e. higher-order transformations transforming quantum channels into themselves.…
Higher-order spectral form factors of circular unitary ensemble
Sohail, Youyi Huang, Lu Wei
Spectral form factor (SFF), one of the key quantity from random matrix theory, serves as an important tool to probe universality in disordered quantum systems and quantum chaos. In…
Unified Framework for Direct and Complete Characterization of an Unknown Kraus Operator and Density Matrix Using a Single Input State
Sahil, Swarup Kumar Giri, Sohail
Characterization of quantum measurements and dynamical processes is typically performed using pure state preparations. However, in realistic experimental settings, the preparation…
Unified Framework for Direct Characterization of Kraus Operators, Observables, Density Matrices, and Weak Values Without Weak Interaction
Sahil, Sohail
Generalized quantum measurements, described by positive operator-valued measures (POVMs), are essential for modeling realistic processes in open quantum systems. While quantum proc…
Bochner's theorem for finite inverse semigroups and its connection to Choi's theorem
Sohail, Sahil
Bochner's theorem characterizes positive definite functions on groups through the positivity of their Fourier transforms and plays a fundamental role in Harmonic analysis. While Bo…
Fundamental limitations on the recoverability of quantum processes
Sohail, Vivek Pandey, Uttam Singh +1
Quantum information processing and computing tasks can be understood as quantum networks, comprising quantum states and channels and possible physical transformations on them. It i…
Monogamy and tradeoff relations for wave-particle duality information
Shailja Kapoor, Sohail, Gautam Sharma +1
The notions of predictability and visibility are essential in the mathematical formulation of wave particle duality. The work of Jakob and Bergou [Phys. Rev. A 76, 052107] generali…
Duality between quantum channels and super-channels is basis-dependent
Sohail, Sahil, Ritabrata Sengupta +1
The complete positivity vs positivity correspondence in the Choi-Jamiołkowski-Kraus-Sudarshan quantum channel-state isomorphism depends on the choice of basis. Instead of the "cano…
Fundamental speed limits on entanglement dynamics of bipartite quantum systems
Vivek Pandey, Swapnil Bhowmick, Brij Mohan +2
The speed limits on entanglement are defined as the maximal rate at which entanglement can be generated or degraded in a physical process. We derive the speed limits on entanglemen…
Teleportation of quantum coherence
Sohail, Arun K Pati, Vijeth Aradhya +2
We investigate whether it is possible to teleport the coherence of an unknown quantum state from Alice to Bob by communicating a lesser number of classical bits in comparison to wh…
Uncertainty Relations in Pre- and Post-Selected Systems
Sahil, Sohail, Sibasish Ghosh
In this work, we derive Robertson-Heisenberg like uncertainty relation for two incompatible observables in a pre- and post-selected (PPS) system. The newly defined standard deviati…
Tight Product Monogamy Inequality for Entanglement
Ida Mishra, Arun K Pati, Sohail
Quantum entanglement for multiparty system has a unique feature when it comes to sharing its property among various subsystems. This is famously stated as the monogamy of entanglem…
Extraction of Product and Higher Moment Weak Values: Applications in Quantum State Reconstruction and Entanglement Detection
Sahil, Sohail, Subhrajit Modak +2
Weak measurements introduced by Aharonov, Albert and Vaidman (AAV) can provide informations about the system with minimal back action. Weak values of product observables (commuting…
Quantum information can remain without physical body in volatile form
Brij Mohan, Sohail, Chirag Srivastava +2
A deeply rooted view in classical and quantum information is that "information is physical", i.e., to store and process information, we need a physical body. Here we ask whether qu…
Witnessing nonseparability of bipartite quantum operations
Sohail, Ujjwal Sen
We provide a method for witnessing nonseparability of quantum processes on shared systems, which uses the channel-state duality. The method uses a maximally entangled state as a re…