تقرير
Fisher zeros and persistent temporal oscillations in non-unitary quantum circuits
| العنوان: | Fisher zeros and persistent temporal oscillations in non-unitary quantum circuits |
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| المؤلفون: | Basu, Sankhya, Arovas, Daniel P., Gopalakrishnan, Sarang, Hooley, Chris A., Oganesyan, Vadim |
| المصدر: | Phys. Rev. Research 4, 013018 (2022) |
| سنة النشر: | 2021 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Statistical Mechanics, Condensed Matter - Strongly Correlated Electrons |
| الوصف: | We present a quantum circuit with measurements and post-selection that exhibits a panoply of space- and/or time-ordered phases, from ferromagnetic order to spin-density waves to time crystals. Unlike the time crystals that have been found in unitary models, those that occur here are \emph{incommensurate} with the drive frequency. The period of the incommensurate time-crystal phase may be tuned by adjusting the circuit parameters. We demonstrate that the phases of our quantum circuit, including the inherently non-equilibrium dynamical ones, correspond to complex-temperature equilibrium phases of the exactly solvable square-lattice anisotropic Ising model. Comment: v1-->v2: significantly revised, new co-author added; small typo fixed in the most recent version 3 |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevResearch.4.013018 |
| URL الوصول: | http://arxiv.org/abs/2103.10628 |
| رقم الأكسشن: | edsarx.2103.10628 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevResearch.4.013018 |
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