Work

Quantum speed limits for information and coherence

Year: 2022

Type: article

Abstract: The quantum speed limit indicates the maximal evolution speed of the quantum system. In this work, we determine speed limits on the informational measures, namely the von Neumann entropy, maximal information, and coherence of quantum systems evolving under dynamical processes. These speed limits ascertain the fundamental limitations on the evolution time required by the quantum systems for the changes in their informational measures. Erasing of quantum information to reset the memory for future use is crucial for quantum computing devices. We use the speed limit on the maximal information to obtain the minimum time required to erase the information of quantum systems via some quantum processes of interest.

Source: New Journal of Physics

DOI: 10.1088/1367-2630/ac753c

Authors: Brij Mohan, Siddhartha Das, Arun Kumar Pati

Institutions: Homi Bhabha National Institute, Harish-Chandra Research Institute, Université Libre de Bruxelles, International Institute of Information Technology, Hyderabad

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,255

Funders: Harish-Chandra Research Institute, European Commission, Department of Science and Technology, Ministry of Science and Technology, India