Related papers: Beyond Energy: Teleporting Current, Charge, and More

Beyond Energy: Teleporting Current, Charge, and More

URL: http://arxiv.org/abs/2407.12359v2
Date: Sun, 21 Jul 2024 08:24:12 GMT
Title: Beyond Energy: Teleporting Current, Charge, and More
Authors: Kazuki Ikeda,
Abstract summary: We study a (1+1)-dimensional chiral Dirac system and execute the protocol for the electric current and charge. One of the most significant results is the creation of long-range correlations across the system. We find an activation of novel chiral dynamics induced by feedback control operations.
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
Abstract: As an homage to Quantum Energy Teleportation, we generalize the idea to arbitrary physical observables, not limited to energy, and prove a rigorous upper bound on the activated ("teleported") quantity. The essence of this protocol is a quantum feedback control with respect to the entangled ground state of a quantum many-body system. To demonstrate the concept, we explore a (1+1)-dimensional chiral Dirac system and execute the protocol for the electric current and charge. One of the most significant results is the creation of long-range correlations across the system after applying control operations only to one local site. Consequently but surprisingly, the induced charge susceptibility fully reconstructs the phase diagram, despite the model initially having no charge. Moreover, we find an activation of novel chiral dynamics induced by feedback control operations, which can be experimentally confirmed using trapped ions and neutral atoms.

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