Pubs2025 Archivos - Page 4 Of 5 - Instituto De Física Fundamental

Scalable quantum eraser with superconducting integrated circuits

Marcelo Castellanos2025-04-29T11:13:07+02:00Tags: Multidisciplinary. , Quantum Science & Technology; Physics|

Authors: Diniz, Ciro Micheletti; Villas-Boas, Celso J.; Santos, Alan C. Journal: QUANTUM SCIENCE AND TECHNOLOGY Publication date: 2025/04/01 DOI: 10.1088/2058-9565/adbded Abstract: A fast and scalable scheme for multi-qubit resetting in superconducting quantum processors is proposed by exploiting the feasibility of frequency-tunable transmon qubits and transmon-like couplers to engineer a full programmable superconducting erasing head. We [...]

On the role of true and false chirality in producing parity-violating energy differences

Marcelo Castellanos2025-04-29T11:13:06+02:00Tags: Multidisciplinary Sciences. |

Authors: Martinez-Gil, Daniel; Bargueno, Pedro; Miret-Artes, Salvador Journal: PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES Publication date: 2025/02/05 DOI: 10.1098/rspa.2023.0938 Abstract: In this work, we tackle the problem of showing which type of influences can lift the degeneracy between truly and falsely chiral systems, showing that only when both systems and influences [...]

MADWAVE3: A quantum time dependent wave packet code for nonadiabatic state-to-state reaction dynamics of triatomic systems

Marcelo Castellanos2025-04-29T11:13:05+02:00Tags: Computer Science, Interdisciplinary Applications; Physics, Mathematical. |

Authors: Roncero, Octavio; del Mazo-Sevillano, Pablo Journal: COMPUTER PHYSICS COMMUNICATIONS Publication date: 2025/03/01 DOI: 10.1016/j.cpc.2024.109471 Abstract: We present MADWAVE3, a FORTRAN90 code designed for quantum time-dependent wave packet propagation in triatomic systems. This program allows the calculation of state-to-state probabilities for inelastic and reactive collisions, as well as photodissociation processes, over one or multiple coupled [...]

Hydrogenation of acetaldehyde on interstellar ice analogs results in limited destruction

Marcelo Castellanos2025-04-29T11:13:05+02:00Tags: Astronomy & Astrophysics. |

Authors: Molpeceres, G.; Nguyen, T.; Oba, Y.; Watanabe, N. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2025/02/20 DOI: 10.1051/0004-6361/202451990 Abstract: Context. Acetaldehyde (CH3CHO) is one of the most abundant interstellar complex organic molecules and its hydrogenation has important implications in several fundamental processes of interstellar chemistry, such as deuterium fractionation, reactive desorption, or the relation between [...]

The large PAH sumanene: laboratory rotational spectroscopy and astronomical search

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

Authors: Moran, Jose R.; Cabezas, Carlos; Hussain, Farha S.; Perez, Cristobal; Cernicharo, Jose; Steber, Amanda L.; Pena, Isabel Journal: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Publication date: 2025/03/24 DOI: 10.1093/mnras/staf421 Abstract: The recent interstellar detection of individual polycyclic aromatic hydrocarbons (PAHs) in the Taurus Molecular Cloud (TMC-1) brings with it interest in related species [...]

Laser-assisted motional-mode spectroscopy in a Penning trap and the generalized invariance theorem

Marcelo Castellanos2025-04-29T11:13:03+02:00Tags: Atomic, Molecular & Chemical. , Optics; Physics|

Authors: Berrocal, J.; Hernandez, A.; Porras, D.; Rodriguez, D. Journal: PHYSICAL REVIEW A Publication date: 2025/01/01 DOI: 10.1103/PhysRevA.110.063107 Abstract: In this paper we measure all the motional-mode frequencies (common and stretch) of a balanced and an unbalanced two-ion Coulomb crystal in a 7-tesla Penning trap using an electric-dipole transition in 40Ca+. The three common modes [...]

Scan Quantum Mechanics: Quantum Inertia Stops Superposition

Marcelo Castellanos2025-04-29T11:13:02+02:00Tags: Astronomy & Astrophysics; Physics, Particles & Fields. |

Authors: Gato-Rivera, Beatriz Journal: UNIVERSE Publication date: 2025/02/01 DOI: 10.3390/universe11020058 Abstract: Scan Quantum Mechanics (SQM) is a novel interpretation in which the superposition of states is only an approximate effective concept due to lack of time resolution. Quantum systems scan all possible states in the apparent superpositions and switch randomly and very rapidly among them. [...]

Exact Quantization of Nonreciprocal Quasilumped Electrical Networks

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

Authors: Parra-Rodriguez, A.; Egusquiza, I. L. Journal: PHYSICAL REVIEW X Publication date: 2025/03/28 DOI: 10.1103/PhysRevX.15.011072 Abstract: Following a consistent geometrical description previously introduced [Quantum 8, 1466 (2024)], we present an exact method for obtaining canonically quantizable Hamiltonian descriptions of nonlinear, nonreciprocal quasilumped electrical networks. We identify and classify singularities arising in the quest for Hamiltonian [...]

Adsorption of molecular hydrogen on extended graphene prototypes decorated with sodium: a quantum-mechanical study

Marcelo Castellanos2025-04-29T11:13:01+02:00Tags: Multidisciplinary. , Physics|

Authors: Garcia-Arroyo, Esther; Bartolomei, Massimiliano; Hernandez, Marta, I; Gonzalez-Lezana, Tomas; Mella, Massimo; Campos-Martinez, Jose Journal: PHYSICA SCRIPTA Publication date: 2025/01/01 DOI: 10.1088/1402-4896/ad9e4b Abstract: This paper presents a study of sodium-decorated circumcircumcoronene, a large polycyclic aromatic hydrocarbon (PAH) regarded as a graphene prototype, and the complexes formed upon aggregation of hydrogen molecules on this substrate. Accurate [...]

Detection of thioacetaldehyde (CH3CHS) in TMC-1: Sulfur-oxygen differentiation along the hydrogenation sequence?

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

Authors: Agundez, M.; Molpeceres, G.; Cabezas, C.; Marcelino, N.; Tercero, B.; Fuentetaja, R.; de Vicente, P.; Cernicharo, J. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2025/01/28 DOI: 10.1051/0004-6361/202453459 Abstract: In recent years, the chemistry of sulfur in the interstellar medium has experienced renewed interest due to the detection of a large variety of molecules containing sulfur. [...]