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| VOLUME 123 (2026) | ISSUE 5 | PAGE 376 |
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Free Fock parafermions in the tight-binding model with dissipation
A. S. Mastiukova+*×, D. V. Kurlov+×, V. Gritsev+°, A. K. Fedorov+×
+Russian Quantum Center, Skolkovo, 143025 Moscow, Russia *Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia ×National University of Science and Technology "MISIS", 119049 Moscow, Russia °Institute for Theoretical Physics Amsterdam, Universiteit van Amsterdam, Amsterdam 1098 XH, The Netherlands
Abstract
Parafermions that generalize (Majorana or usual) fermions appear as interacting quasi-particles because of their nature. Although attempts to develop models with free (non-interacting) parafermions have been undertaken, existing proposals require unphysical conditions such as realizing purely non-Hermitian systems. Here we present a way for the realization of free Fock parafermions in the tight-binding model with controlled dissipation of a very simple form. Introducing dissipation transforms an originally non-integrable quantum model to an exactly solvable classical one. |