19 papers
Optimal Interaction Free Localization with Multipath Interferometers
Anubhav Chaturvedi, Jorge Escandón-Monardes, Esteban S. Gómez +2
The paper proposes and analyzes optimal interaction‑free measurement protocols that locate absorbers using a single photon spread over many paths of a multipath interferometer, ext…
No Finite NPA Level Characterizes the Complete Quantum Set in the Simplest Bell Scenario
Anubhav Chaturvedi
The paper provides an analytical proof that no finite level of the Navascués‑Pironio‑Acín (NPA) hierarchy can exactly capture the full set of quantum correlations in the simplest b…
Semi-Device-Independent Quantum Key Distribution from Operational Assumptions
Anubhav Chaturvedi, Giuseppe Viola, Ekta Panwar +2
Semi-device-independent quantum key distribution leaves the measurement devices uncharacterized while placing a trusted assumption on Alice's source. We formulate this source assum…
Entanglement assisted communication complexity measured by distinguishability
Satyaki Manna, Ankush Pandit, Anubhav Chaturvedi +1
We investigate the quantum advantage that can arise in typical two-party communication scenarios, where the sender and the receiver are allowed to share prior correlations. Focusin…
Limits of Classical correlations and Quantum advantages under (Anti-)Distinguishability constraints in Multipartite Communication
Ankush Pandit, Soumyabrata Hazra, Satyaki Manna +2
We consider communication scenarios with multiple senders and a single receiver. Focusing on communication tasks where the distinguishability or antidistinguishability of the sende…
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…