Pubs2025 Archivos - Page 3 Of 5 - Instituto De Física Fundamental

Electron Attachment to Nitric Oxide (NO) Controversy

Marcelo Castellanos2025-04-29T11:13:17+02:00Tags: Atomic, Chemistry, Molecular & Chemical. , Physical; Physics|

Authors: Lozano, Ana I.; Oller, Juan C.; Limao-Vieira, Paulo; Garcia, Gustavo Journal: JOURNAL OF PHYSICAL CHEMISTRY A Publication date: 2025/02/28 DOI: 10.1021/acs.jpca.4c07675 Abstract: We report novel total electron scattering cross sections (TCS) from nitric oxide (NO) in the impact energy range from 1 to 15 eV by using a magnetically confined electron transmission apparatus. The [...]

Quantum steering ellipsoids and quantum obesity in critical systems

Marcelo Castellanos2025-04-29T11:13:17+02:00Tags: Multidisciplinary. , Physics|

Authors: Rosario, Pedro; Santos, Alan c. Journal: EPL Publication date: 2025/01/01 DOI: 10.1209/0295-5075/ad8f5e Abstract: - Quantum obesity (QO) is a novel function introduced to quantify quantum correlations that go beyond traditional measures like entanglement, while also functioning as an entanglement witness. One of the key strengths of QO lies in its analyticity for arbitrary states [...]

Identification of the interstellar 1-cyano propargyl radical (HCCCHCN) in TMC-1

Marcelo Castellanos2025-04-29T11:13:16+02:00Tags: Astronomy & Astrophysics. |

Authors: Cabezas, C.; Agundez, M.; Marcelino, N.; Chang, C. H.; Fuentetaja, R.; Tercero, B.; Nakajima, M.; Endo, Y.; de Vicente, P.; Cernicharo, J. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2025/01/13 DOI: 10.1051/0004-6361/202453419 Abstract: We report the first detection in interstellar medium of the 1-cyano propargyl radical, HC3HCN. This species is an isomer of the 3-cyano [...]

Pauli weight requirement of the matrix elements in time-evolved local operators: Dependence beyond the equilibration temperature

Marcelo Castellanos2025-04-29T11:13:15+02:00Tags: Applied; Physics, Condensed Matter. , Materials Science, Multidisciplinary; Physics|

Authors: Ramos-Marimon, Carlos; Carignano, Stefano; Tagliacozzo, Luca Journal: PHYSICAL REVIEW B Publication date: 2025/03/05 DOI: 10.1103/PhysRevB.111.094301 Abstract: The complexity of simulating the out-of-equilibrium evolution of local operators in the Heisenberg picture is governed by the operator entanglement, which grows linearly in time for generic nonintegrable systems, leading to an exponential increase in computational resources. A [...]

Majorana bound states from cavity embedding in an interacting two-site Kitaev chain

Marcelo Castellanos2025-04-29T11:13:14+02:00Tags: Applied; Physics, Condensed Matter. , Materials Science, Multidisciplinary; Physics|

Authors: Gomez-Leon, Alvaro; Schiro, Marco; Dmytruk, Olesia Journal: PHYSICAL REVIEW B Publication date: 2025/04/09 DOI: 10.1103/PhysRevB.111.155410 Abstract: Poor man's Majorana bound states (MBS) arise in minimal Kitaev chains when the parameters are fine-tuned to a sweet spot. We consider an interacting two-site Kitaev chain coupled to a single-mode cavity and show that the sweet spot [...]

Dipole-dipole interactions mediated by a photonic flat band

Marcelo Castellanos2025-04-29T11:13:11+02:00Tags: Multidisciplinary. , Quantum Science & Technology; Physics|

Authors: Di Benedetto, Enrico; Gonzalez-Tudela, Alejandro; Ciccarello, Francesco Journal: QUANTUM Publication date: 2025/03/25 DOI: Abstract: Flat bands (FBs) are energy bands with zero group velocity, which in electronic systems were shown to favor strongly correlated phenomena. Indeed, a FB can be spanned with a basis of strictly localized states, the so called compact localized states [...]

Light-matter correlations in Quantum Floquet engineering of cavity quantum materials

Marcelo Castellanos2025-04-29T11:13:10+02:00Tags: Multidisciplinary. , Quantum Science & Technology; Physics|

Authors: Perez-Gonzalez, Beatriz; Platero, Gloria; Gomez-Leon, Alvaro Journal: QUANTUM Publication date: 2025/02/06 DOI: Abstract: Quantum Floquet engineering (QFE) seeks to generalize the control of quantum systems with classical external fields, widely known as Semi-Classical Floquet engineering (SCFE), to quantum fields. However, to faithfully capture the physics at arbitrary coupling, a gauge-invariant description of light-matter interaction [...]

Linear response theory for cavity QED materials at arbitrary light-matter coupling strengths

Marcelo Castellanos2025-04-29T11:13:09+02:00Tags: Applied; Physics, Condensed Matter. , Materials Science, Multidisciplinary; Physics|

Authors: Roman-Roche, Juan; Gomez-Leon, Alvaro; Luis, Fernando; Zueco, David Journal: PHYSICAL REVIEW B Publication date: 2025/01/31 DOI: 10.1103/PhysRevB.111.035156 Abstract: We develop a linear response theory for materials collectively coupled to a cavity that is valid in all regimes of light-matter coupling, including symmetry-broken phases. We present and compare two different approaches. First, we use a [...]

Bound polariton states in the Dicke-Ising model

Marcelo Castellanos2025-04-29T11:13:09+02:00Tags: Applied. , Multidisciplinary; Optics; Physics, Nanoscience & Nanotechnology; Materials Science|

Authors: Roman-Roche, Juan; Gomez-Leon, Alvaro; Luis, Fernando; Zueco, David Journal: NANOPHOTONICS Publication date: 2025/02/17 DOI: 10.1515/nanoph-2024-0568 Abstract: We present a study of hybrid light-matter excitations in cavity QED materials using the Dicke-Ising model as a theoretical framework. Leveraging linear response theory, we derive the exact excitations of the system in the thermodynamic limit. Our results [...]

Long-Range Interactions in Weyl-Dense Atomic Arrays Protected from Dissipation and Disorder

Marcelo Castellanos2025-04-29T11:13:08+02:00Tags: Multidisciplinary. , Physics|

Authors: Garcia-Elcano, Inaki; Huidobro, Paloma A.; Bravo-Abad, Jorge; Gonzalez-Tudela, Alejandro Journal: PHYSICAL REVIEW LETTERS Publication date: 2025/03/28 DOI: 10.1103/PhysRevLett.134.123602 Abstract: Long-range interactions are a key resource in many quantum phenomena and technologies. Free-space photons mediate power-law interactions but lack tunability and suffer from decoherence processes due to their omnidirectional emission. Engineered dielectrics can yield tunable [...]