Publications

Synthetic dimensions for topological and quantum phases

Javier Argüello-Luengo, Utso Bhattacharya, Alessio Celi, Ravindra W. Chhajlany, Tobias Grass, Marcin Płodzień, Debraj Rakshit, Tymoteusz Salamon, Paolo Stornati, Leticia Tarruell, and Maciej Lewenstein
Commun Phys 7, 143 (2024) | arXiv:2310.19549 [quant-ph]

The concept of synthetic dimensions works particularly well in atomic physics, quantum optics, and photonics, where the internal degrees of freedom (Zeeman sublevels of the ground state, metastable excited states, or motional states for atoms, and …

Marcin Płodzień, Tomasz Wasak, Emilia Witkowska, Maciej Lewenstein, and Jan Chwedeńczuk
Phys. Rev. Research 6, 023050 (2024) | arXiv:2306.06173 [quant-ph]

Dynamical generation of strong and scalable quantum resources, like many-body entanglement and Bell correlations, in spin-1/2 chains is possible with all-to-all interactions, either for constant interaction strength realizing one-axis twisting …

Javier Argüello-Luengo, Manfred J. Mark, Francesca Ferlaino, Maciej Lewenstein, Luca Barbiero, and Sergi Julià-Farré
Quantum 8, 1285 (2024) | arXiv:2308.13375 [cond-mat.quant-gas]

Thouless pumping represents a powerful concept to probe quantized topological invariants in quantum systems. We explore this mechanism in a generalized Rice-Mele Fermi-Hubbard model characterized by the presence of competing onsite and intersite …

Indrajit Sau, Paolo Stornati, Debasish Banerjee, and Arnab Sen
Phys. Rev. D 109, 034519 (2024) | arXiv:2311.06773 [hep-lat]

In this article, we elucidate the structure and properties of a class of anomalous high-energy states of matter-free U(1) quantum link gauge theory Hamiltonians using numerical and analytical methods. Such anomalous states, known as quantum many-body …

Pavel P. Popov, Michael Meth, Maciej Lewenstein, Philipp Hauke, Martin Ringbauer, Erez Zohar, and Valentin Kasper
Phys. Rev. Research 6, 013202 (2024) | arXiv:2307.15173 [quant-ph]

Lattice gauge theories are fundamental to various fields, including particle physics, condensed matter, and quantum information theory. Recent progress in the control of quantum systems allows for studying Abelian lattice gauge theories in table-top …

Sergi Julià-Farré, Lorenzo Cardarelli, Maciej Lewenstein, Markus Müller, and Alexandre Dauphin
Phys. Rev. B 109, 075109 (2024) | arXiv:2301.03312 [cond-mat.quant-gas]

Interaction-induced topological systems have attracted a growing interest for their exotic properties going beyond the single-particle picture of topological insulators. In particular, the interplay between strong correlations and finite doping can …

Ding-Zu Wang, Hao Zhu, Jian Cui, Javier Argüello-Luengo, Maciej Lewenstein, Guo-Feng Zhang, Piotr Sierant, and and Shi-Ju Ran
Phys. Rev. B 109, 045139 (2024) | arXiv:2310.19333 quant-ph

The eigenstate thermalization hypothesis (ETH) is a successful theory that establishes the criteria for ergodicity and thermalization in isolated quantum many-body systems. In this work, we investigate the thermalization properties of a spin-1/2 XXZ …

Gopal Chandra Santra, Fred Jendrzejewski, Philipp Hauke, and Daniel J. Egger
Phys. Rev. A, 012413 (2024) | arXiv:2205.10383 [quant-ph]

Variational quantum algorithms offer fascinating prospects for the solution of combinatorial optimization problems using digital quantum computers. However, the achievable performance in such algorithms and the role of quantum correlations therein …

Titas Chanda, Marcello Dalmonte, Maciej Lewenstein, Jakub Zakrzewski, and Luca Tagliacozzo
Phys. Rev. B 109, 045103 (2024) | arXiv:2304.01030 [hep-th]

The presence of gauge symmetry in 1+1 dimensions is known to be redundant, since it does not imply the existence of dynamical gauge bosons. As a consequence, in the continuum, the Abelian-Higgs model (i.e., the theory of bosonic matter interacting …