4 papers · 1 filter
Quantum resonance based encryption protocol with quantum kicked top
Sreeram PG, M. S. Santhanam
We propose a genuine quantum protocol for protecting user's data, either in a shared quantum computer or in a quantum communication system, that is not accessible even to the servi…
Probing Chaos and Criticality with Observational Entropy and Finite-Resolution Measurements
J. Bharathi Kannan, Sreeram PG, M. S. Santhanam
Coarse-grained measurements offer a scalable alternative to full state tomography for characterizing complex quantum dynamics. We show that observational entropy (OE), an informati…
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…
A study of chaos and randomness in quantum systems
Sreeram PG
How classical chaos emerges from the underlying quantum world is a fundamental problem in physics. The origin of this question is in the correspondence principle. Classical chaos a…