Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Utso Bhattacharya"'
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-8 (2024)
Abstract Fractal lattices are self-similar structures with repeated patterns on different scales. Quantum transport through such structures is subtle due to the possible co-existence of localized and extended states. Here, we study the dynamical prop
Externí odkaz:
https://doaj.org/article/45a9194c9a444ee789ba7cb721daf348
Autor:
Javier Argüello-Luengo, Utso Bhattacharya, Alessio Celi, Ravindra W. Chhajlany, Tobias Grass, Marcin Płodzień, Debraj Rakshit, Tymoteusz Salamon, Paolo Stornati, Leticia Tarruell, Maciej Lewenstein
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-10 (2024)
Abstract 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 atom
Externí odkaz:
https://doaj.org/article/6a524894a95b448e9284ce2e1f9aa88c
Autor:
Lin Zhang, Utso Bhattacharya, Adrian Bachtold, Stefan Forstner, Maciej Lewenstein, Fabio Pistolesi, Tobias Grass
Publikováno v:
npj Quantum Information, Vol 9, Iss 1, Pp 1-9 (2023)
Abstract Quantum dots placed along a vibrating nanotube provide a quantum simulation platform that can directly address the electron-phonon interaction. This offers promising prospects for the search of new quantum materials and the study of strong c
Externí odkaz:
https://doaj.org/article/d9c6b027292d4df3b69d78e95be66301
Autor:
Joana Fraxanet, Utso Bhattacharya, Tobias Grass, Debraj Rakshit, Maciej Lewenstein, Alexandre Dauphin
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013148 (2021)
We present a detailed study of the topological properties of the Kitaev chain with long-range pairing terms and in the presence of an Aubry-André-Harper on-site potential. Specifically, we consider algebraically decaying superconducting pairing ampl
Externí odkaz:
https://doaj.org/article/0ac399be80f642efbd705b9adf4cab44
Publikováno v:
New Journal of Physics, Vol 22, Iss 1, p 013024 (2020)
The precise estimation of small parameters is a challenging problem in quantum metrology. Here, we introduce a protocol for accurately measuring weak magnetic fields using a two-level magnetometer, which is coupled to two (hot and cold) thermal baths
Externí odkaz:
https://doaj.org/article/04e6159935d24adcbe7c568767e637ec
Publikováno v:
ACS omega. 7(50)
We propose a protocol to detect topological phase transitions of one-dimensional $p$-wave superconductors from their harmonic emission spectrum in strong fields. Specifically, we identify spectral features due to radiating edge modes, which character
Autor:
Lin Zhang, Utso Bhattacharya, Adrian Bachtold, Stefan Forstner, Maciej Lewenstein, Fabio Pistolesi, Tobias Grass
Quantum dots placed along a vibrating nanotube provide a quantum simulation platform that can directly address the electron-phonon interaction. This offers promising prospects for the search of new quantum materials and the study of strong correlatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e59cfedbd840696331d109ad1a18c7e
https://doi.org/10.21203/rs.3.rs-1879383/v1
https://doi.org/10.21203/rs.3.rs-1879383/v1
As the bound state of two oppositely charged particles, excitons emerge from optically excited semiconductors as the electronic analogue of a hydrogen atom. In the two-dimensional (2D) case, realized either in quantum well systems or truly 2D materia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46e312e96b4f47c8f205efe610407be1
http://arxiv.org/abs/2201.13058
http://arxiv.org/abs/2201.13058
Autor:
Francois Dubin, Camille Lagoin, Utso Bhattacharya, Tobias Grass, Ravi Chhajlany, Tymek Salomon, Kirk Baldwin, Loren Pfeiffer, Maciej Lewenstein, Markus Holzmann
The Hubbard model constitutes one of the most celebrated theoretical frameworks of condensed-matter physics. It describes strongly correlated phases of interacting quantum particles confined in a lattice potential. For bosons, in the last two decades
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86e27202f0da24ab981149dbf749d68a
https://doi.org/10.21203/rs.3.rs-1268096/v1
https://doi.org/10.21203/rs.3.rs-1268096/v1
Autor:
Alexandre Dauphin, Joana Fraxanet Morales, Tobias Grass, Maciej Lewenstein, Utso Bhattacharya
In the presence of quasiperiodic potentials, the celebrated Kitaev chain presents an intriguing phase diagram with ergodic, localized and and multifractal states. In this work, we generalize these results by studying the localization properties of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af7e7e0f9646b5623be2f5160d648814