Publications (8)
Quantum work beyond classical (commuting) limits
Sumit Rout, Aravinth Balaji Ravichandran, PaweÅ Horodecki +1
Free energy fixes the maximum work of a thermodynamic process once the state and Hamiltonian are specified. A work-extraction task asks a different question: how much average work…
Facets of Non-locality and Advantage in Entanglement-Assisted Classical Communication Tasks
Sumit Rout, Anubhav Chaturvedi, Some Sankar Bhattacharya +1
We reveal key connections between non-locality and advantage in correlation-assisted classical communication. First, using the wire-cutting technique, we provide a Bell inequality…
Genuinely Nonlocal Product Bases: Classification and Entanglement Assisted Discrimination
Sumit Rout, Ananda G. Maity, Amit Mukherjee +2
An orthogonal product basis of a composite Hilbert space is genuinely nonlocal if the basis states are locally indistinguishable across every bipartition. From an operational point…
Randomness-free Detection of Non-projective Measurements: Qubits & beyond
Sumit Rout, Some Sankar Bhattacharya, PaweÅ Horodecki
Non-projective measurements play a crucial role in various information-processing protocols. In this work, we propose an operational task to identify measurements that are neither…
Quantum Advantage for Shared Randomness Generation
Tamal Guha, Mir Alimuddin, Sumit Rout +3
Sharing correlated random variables is a resource for a number of information theoretic tasks such as privacy amplification, simultaneous message passing, secret sharing and many m…
Quantum Locker Using a Novel Verification Algorithm and Its Experimental Realization in IBM Quantum Computer
Avinash Dash, Sumit Rout, Bikash K. Behera +1
It is well known that Grover's algorithm asymptotically transforms an equal superposition state into an eigenstate (of a given basis). Here, we demonstrate a verification algorithm…
Unbounded Quantum Advantage in Communication with Minimal Input Scaling
Sumit Rout, Nitica Sakharwade, Some Sankar Bhattacharya +2
In communication complexity-like problems, previous studies have shown either an exponential quantum advantage or an unbounded quantum advantage with an exponentially large input s…
Multiparty orthogonal product states with minimal genuine nonlocality
Sumit Rout, Ananda G. Maity, Amit Mukherjee +2
Nonlocality without entanglement and its subsequent generalizations offer deep information-theoretic insights and subsequently find several useful applications. Concept of genuinel…