Back to News
quantum-computing

Controlling emergent dynamical behavior via phase-engineered strong symmetries

arXiv Quantum Physics
Loading...
3 min read
0 likes
⚡ Quantum Brief
Researchers demonstrated a novel method to control open quantum systems by introducing a tunable phase in cavity QED light-matter coupling, creating phase-dependent strong symmetries in the Liouvillian. This phase engineering dramatically lowers the critical driving strength required for dissipative phase transitions between stationary and non-stationary quantum states. The team validated the approach in two experimental setups: a two-species ensemble of two-level atoms and a single-species ensemble of three-level atoms. The technique offers precise dynamical control, potentially enabling more efficient quantum state preparation in cavity QED systems. This work establishes phase control as a versatile tool for engineering dissipative quantum phase transitions, advancing quantum simulation and computation.
Controlling emergent dynamical behavior via phase-engineered strong symmetries

Summarize this article with:

Quantum Physics arXiv:2602.18563 (quant-ph) [Submitted on 20 Feb 2026] Title:Controlling emergent dynamical behavior via phase-engineered strong symmetries Authors:Marc Nairn, Beatriz Olmos, Parvinder Solanki View a PDF of the paper titled Controlling emergent dynamical behavior via phase-engineered strong symmetries, by Marc Nairn and 2 other authors View PDF HTML (experimental) Abstract:Symmetry constraints provide a powerful means to control the dynamics of open quantum systems. However, the set of accessible control parameters is often limited. Here, we show that a tunable phase in the collective light-matter coupling of a cavity QED system induces a phase-dependent strong symmetry of the Liouvillian, enabling dynamical control of the open quantum system evolution. We demonstrate that tuning this phase substantially reduces the critical driving strength for dissipative phase transitions between stationary and non-stationary phases. We illustrate this mechanism in two experimentally relevant cavity QED settings: a two-species ensemble of two-level atoms and a single-species ensemble of three-level atoms. Our results establish phase control as a versatile tool for engineering dissipative phase transitions, with implications for quantum state preparation. Comments: Subjects: Quantum Physics (quant-ph); Quantum Gases (cond-mat.quant-gas) Cite as: arXiv:2602.18563 [quant-ph] (or arXiv:2602.18563v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2602.18563 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Marc Nairn [view email] [v1] Fri, 20 Feb 2026 19:00:23 UTC (2,633 KB) Full-text links: Access Paper: View a PDF of the paper titled Controlling emergent dynamical behavior via phase-engineered strong symmetries, by Marc Nairn and 2 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-02 Change to browse by: cond-mat cond-mat.quant-gas References & Citations INSPIRE HEP NASA ADSGoogle Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv (What is alphaXiv?) Links to Code Toggle CatalyzeX Code Finder for Papers (What is CatalyzeX?) DagsHub Toggle DagsHub (What is DagsHub?) GotitPub Toggle Gotit.pub (What is GotitPub?) Huggingface Toggle Hugging Face (What is Huggingface?) Links to Code Toggle Papers with Code (What is Papers with Code?) ScienceCast Toggle ScienceCast (What is ScienceCast?) Demos Demos Replicate Toggle Replicate (What is Replicate?) Spaces Toggle Hugging Face Spaces (What is Spaces?) Spaces Toggle TXYZ.AI (What is TXYZ.AI?) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower (What are Influence Flowers?) Core recommender toggle CORE Recommender (What is CORE?) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs. Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)

Read Original

Source Information

Source: arXiv Quantum Physics