4 papers
Classical Verification of a Remote Quantum Processor via Degenerate Concordant Computations: An Application to Randomness Generation
Bishal Kumar Das, Lakshya Priyadarshi
A client renting a cloud quantum processor cannot easily tell whether its bitstrings came from a quantum device. Certification by random circuit sampling runs on present hardware,…
Objectivity, basis ambiguity, and the classical simulability of concordant quantum computation
Bishal Kumar Das, Sourav Manna, Vaibhav Madhok
Concordant quantum computations, in which circuits whose register carries zero quantum discord with respect to every subsystem at every step, contain neither entanglement nor any o…
Quantum-to-classical transition and the emergence of trajectory level Darwinism with measurements distributed in time: a path integral approach
Harsh Arora, Bishal Kumar Das, Baladitya Suri +1
We present a formulation for the emergence of classical dynamics in a quantum world using a path integral approach that incorporates continuous measurements. Our approach complemen…
Information acquisition, scrambling, and sensitivity to errors in quantum chaos
Sreeram PG, Abinash Sahu, Naga Dileep Varikuti +3
Signatures of chaos can be understood by studying quantum systems whose classical counterpart is chaotic. However, the concepts of integrability, non-integrability and chaos extend…