7 papers
Conditional channel entropy sets fundamental limits on thermodynamic quantum information processing
Himanshu Badhani, Siddhartha Das
The thermodynamic resourcefulness of quantum channels primarily depends on their underlying causal structure and their ability to generate quantum correlations. We quantify this in…
Thermodynamic work capacity of quantum information processing
Himanshu Badhani, Dhanuja G S, Siddhartha Das
We introduce the resource-theoretic free energy of a quantum channel as the maximal work extractable from the channel as its output equilibrates to a thermal state and its referenc…
Thermodynamics of quantum processes: An operational framework for free energy and reversible athermality
Himanshu Badhani, Dhanuja G. S., Siddhartha Das
We explore the thermodynamics of quantum processes (quantum channels) by axiomatically introducing the free energy for channels, defined via the quantum relative entropy with an ab…
Erasure cost of a quantum process: A thermodynamic meaning of the dynamical min-entropy
Himanshu Badhani, Dhanuja GS, Swati Choudhary +2
The erasure of information is fundamentally an irreversible logical operation, carrying profound consequences for the energetics of computation and information processing. We inves…
Exploring Non-Markovianity in Ergodic Channels: Measuring Memory Retention through Ergotropy
Ritam Basu, Anish Chakraborty, Himanshu Badhani +2
In this work we introduce and characterize a broad class of quantum operations with a unique fixed point, termed quantum ergodic channels. We derive Lindblad-type master equations…
Decomposition of a system in pseudo-Hermitian quantum mechanics
Himanshu Badhani, Sibasish Ghosh
This work outlines a consistent method of identifying subsystems in finite-dimensional Hilbert spaces, independent of the underlying inner-product structure. Such Hilbert spaces ar…