Projekteja vuodessa
Abstrakti
Predicting the phase diagram of interacting quantum many-body systems is a central problem in condensed matter physics and related fields. A variety of quantum many-body systems, ranging from unconventional superconductors to spin liquids, exhibit complex competing phases whose theoretical description has been the focus of intense efforts. Here, we show that neural network quantum states can be combined with a Lee-Yang theory of quantum phase transitions to predict the critical points of strongly correlated spin lattices. Specifically, we implement our approach for quantum phase transitions in the transverse-field Ising model on different lattice geometries in one, two, and three dimensions. We show that the Lee-Yang theory combined with neural network quantum states yields predictions of the critical field, which are consistent with large-scale quantum many-body methods. As such, our results provide a starting point for determining the phase diagram of more complex quantum many-body systems, including frustrated Heisenberg and Hubbard models.
Alkuperäiskieli | Englanti |
---|---|
Artikkeli | 033116 |
Sivut | 1-9 |
Sivumäärä | 9 |
Julkaisu | PHYSICAL REVIEW RESEARCH |
Vuosikerta | 5 |
Numero | 3 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 18 elok. 2023 |
OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Sormenjälki
Sukella tutkimusaiheisiin 'Lee-Yang theory of quantum phase transitions with neural network quantum states'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.-
Lado Jose AT-palkka: Engineering fractional quantum matter in twisted van der Waals materials
Lado, J. (Vastuullinen tutkija)
01/09/2020 → 31/08/2025
Projekti: Academy of Finland: Other research funding
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Lado Jose AT-kulut: Engineering fractional quantum matter in twisted van der Waals materials
Lado, J. (Vastuullinen tutkija), Hyart, T. (Projektin jäsen), Kumar, P. (Projektin jäsen) & Koch, R. (Projektin jäsen)
01/09/2020 → 31/08/2023
Projekti: Academy of Finland: Other research funding
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Kvanttiteknologian huippuyksikkö
Flindt, C. (Vastuullinen tutkija), Potanina, E. (Projektin jäsen), Burset Atienza, P. (Projektin jäsen) & Pyhäranta, T. (Projektin jäsen)
01/01/2018 → 31/12/2020
Projekti: Academy of Finland: Other research funding