Selective decoupling in multilevel quantum systems by the SU(2) sign anomaly
Abstract We investigate dynamical decoupling operated by $$2\pi$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mn>2</mml:mn> <mml:mi>π</mml:mi> </mml:mrow> </mml:math> -pulses in a two-level subspace of a multilevel system showing that it may lead to selective decoupling. This provides a flexible strategy for decoupling transitions in a quantum network, when control to directly address them is not available, which can be used to control internode interaction or actively suppress decoherence.
Authors
- G. Falci (ORCID: https://orcid.org/0000-0001-5842-2677)
- Elisabetta Paladino (ORCID: https://orcid.org/0000-0002-9929-3768)
- G. Piccitto (ORCID: https://orcid.org/0000-0001-9168-8215)
- Vittorio Romano (ORCID: https://orcid.org/0000-0002-2967-6552)
- Giorgio Anfuso (ORCID: https://orcid.org/0000-0002-7266-2842)
Institutions
- University of Catania (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Catania (IT)
- Institute for Microelectronics and Microsystems (IT)
Publication Details
- Journal
- The European Physical Journal Special Topics
- Published
- 2026-02-18
- DOI
- https://doi.org/10.1140/epjs/s11734-026-02190-5
- Primary Topic
- Cold Atom Physics and Bose-Einstein Condensates
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Università di Catania