Non-Markovianity leading to coherence revivals in an open quantum system

Abstract

Coherence and quantum correlations have been identified as fundamental resources for quantum information tasks. As recently shown, these resources can be interconverted. In multipartite systems, entanglement represents a prominent case among quantum correlations, one which can be activated from coherence. All this makes coherence a key resource for securing the operational advantage of quantum technologies. When dealing with open systems, decoherence hinders full exploitation of quantum resources. Here, we present a protocol that allows reaching the maximal achievable amount of coherence in an open quantum system. By implementing our protocol, or suitable variants of it, coherence losses might be fully compensated, thereby leading to coherence revivals. We provide an experimental proof of principle of our protocol through its implementation with an all-optical setup.

Document Details

Document Type
Pub Defense Publication
Publication Date
Oct 01, 2020
Source ID
10.1142/s0219749920500409

Entities

People

  • Francisco De Zela
  • Y. Yugra

Organizations

  • Office of Naval Research
  • Pontifical Catholic University of Peru

Tags

Fields of Study

  • Computer science
  • Physics

Readers

  • Economics
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Quantum Computing