Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Álvaro Gómez-León"'
Autor:
Álvaro Gómez-León
Publikováno v:
Quantum, Vol 8, p 1522 (2024)
Floquet topological phases emerge when systems are periodically driven out-of-equilibrium. They gained attention due to their external control, which allows to simulate a wide variety of static systems by just tuning the external field in the high fr
Externí odkaz:
https://doaj.org/article/4e05e0b530dd469d93813840839afe44
Publikováno v:
Quantum, Vol 7, p 1016 (2023)
We study the phenomena of topological amplification in arrays of parametric oscillators. We find two phases of topological amplification, both with directional transport and exponential gain with the number of sites, and one of them featuring squeezi
Externí odkaz:
https://doaj.org/article/803c6dbf5774476db64a72fc417ae178
Autor:
Álvaro Gómez-León, Gloria Platero
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033412 (2020)
We investigate the quantum dynamics of a two-level system driven by a bichromatic field, using a nonperturbative analysis. We make special emphasis in the case of two large frequencies, where the Magnus expansion can fail, and in the case of a large
Externí odkaz:
https://doaj.org/article/f3832a912bf2451f82a3dad64f93439f
Autor:
Álvaro Gómez-León
12 pags., 7 figs., 3 apps.
We study photon-mediated interactions between molecular spin qudits in the dispersive regime of operation. We derive from a microscopic model the effective interaction between molecular spins, including their crystal f
We study photon-mediated interactions between molecular spin qudits in the dispersive regime of operation. We derive from a microscopic model the effective interaction between molecular spins, including their crystal f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5ca06a68e4bb6bc2598540a420260f4
http://hdl.handle.net/10261/285809
http://hdl.handle.net/10261/285809
We study the phenomena of topological amplification in arrays of parametric oscillators. We find two phases of topological amplification, both with directional transport and exponential gain with the number of sites, and one of them featuring squeezi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6f8bbcff8a204e09f181555c441eb13
http://arxiv.org/abs/2207.13715
http://arxiv.org/abs/2207.13715
Publikováno v:
Physical Chemistry Chemical Physics 24: 15860-15870 (2022).
11 pags., 5 figs.
We explore the physics of topological lattice models immersed in c-QED architectures for arbitrary coupling strength with the photon field. We propose the use of the cavity transmission as a topological marker and study its beh
We explore the physics of topological lattice models immersed in c-QED architectures for arbitrary coupling strength with the photon field. We propose the use of the cavity transmission as a topological marker and study its beh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a1517d1a9ea084d10c3603e13dfca9e
http://hdl.handle.net/10261/285858
http://hdl.handle.net/10261/285858
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
14 pags., 11 figs., 3 apps.
The unavoidable coupling of quantum systems to external degrees of freedom leads to dissipative (nonunitary) dynamics, which can be radically different from closed-system scenarios. Such open quantum system dynamics i
The unavoidable coupling of quantum systems to external degrees of freedom leads to dissipative (nonunitary) dynamics, which can be radically different from closed-system scenarios. Such open quantum system dynamics i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66e42a8a2aee6fa529a1abeb5d41c26c
http://hdl.handle.net/10261/278021
http://hdl.handle.net/10261/278021
6 pags., 3 figs.
We relate observables in open quantum systems with the topology of non-Hermitian models using the Keldysh path-integral method. This allows to extract an effective Hamiltonian from the Green's function which contains all the rel
We relate observables in open quantum systems with the topology of non-Hermitian models using the Keldysh path-integral method. This allows to extract an effective Hamiltonian from the Green's function which contains all the rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a220e11ccc7986e231061ff8edf2418f
http://arxiv.org/abs/2109.10930
http://arxiv.org/abs/2109.10930
Publikováno v:
Physical review letters. 123(12)
We propose a driving protocol which allows to use quantum dot arrays as quantum simulators for 1D topological phases. We show that by driving the system out of equilibrium, one can imprint bond-order in the lattice (producing structures such as dimer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6e085c508d9df97f9fee94fbd466463
https://pubmed.ncbi.nlm.nih.gov/31633970
https://pubmed.ncbi.nlm.nih.gov/31633970
Publikováno v:
Physical Review B. 99
We extend the standard SSH model to include long range hopping and disorder, and study how the electronic and topological properties are affected. We show that long range hopping can change the symmetry class and the topological invariant, while diag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b9e6be9e006bda67f2eaf63eea5d7d8
https://doi.org/10.1103/physrevb.99.035146
https://doi.org/10.1103/physrevb.99.035146