Marcelo Castellanos, Autor En Instituto De Física Fundamental

About Marcelo Castellanos

Marcelo Castellanos desempeña su actividad en el Instituto de Física Fundamental del CSIC. Ha sido becario de la FGUAM y profesor ayudante en la Facultad de Ciencias de la Universidad Autónoma de Madrid (1998 - 2003). Defendió su tesis doctoral en la UAM en el campo de la Astrofísica Extragaláctica (2001). Ha sido investigador postdoctoral en el CNRS (Toulouse) entre 2003 y 2005. Tras un tiempo de experiencia en el sector privado (2005-2006), ha sido facilitador/”doer”/burócrata/gestor en 3 grandes proyectos de investigación en Astrofísica Molecular, Física Química y Nanociencia (ASTROCAM - Ref.: S-.0505/ESP/000237 entre 2006 y 2009; Consolider-Ingenio ASTROMOL - Ref.: CSD2009-00038 entre 2009 y 2016 y ERC Synergy Grant NANOCOSMOS - Ref.: GA 610256 entre 2014 y 2021). Contacto: Perfil en Linkedin: www.linkedin.com/in/marceloc26569a6 Bluesky: @mcastellanosb1508.bsky.social

Quantum-classical rate coefficients for O2 + N2 inelastic collisions with very high vibrational levels

Marcelo Castellanos2025-04-29T11:13:25+02:00Tags: Atomic, Molecular & Chemical. , Optics; Physics|

Authors: Yang, Jiawei; Hong, Qizhen; Bartolomei, Massimiliano; Pirani, Fernando; Coletti, Cecilia; Sun, Quanhua; Li, Jun Journal: PHYSICAL REVIEW A Publication date: 2025/03/06 DOI: 10.1103/PhysRevA.111.032804 Abstract: Energy exchanges among internal energy modes in O2 + N2 collisions directly affect the microscopic dynamical evolution of nonequilibrium phenomena in these gases. Quantum calculations of energy exchanges, especially those [...]

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 [...]

Passive Photonic CZ Gate with Two-Level Emitters in Chiral Multimode Waveguide QED

Marcelo Castellanos2025-04-29T11:12:57+02:00Tags: Applied; Physics, Multidisciplinary. , Quantum Science & Technology; Physics|

Authors: Levy-Yeyati, Tomas; Vega, Carlos; Ramos, Tomas; Gonzalez-Tudela, Alejandro Journal: PRX QUANTUM Publication date: 2025/03/05 DOI: 10.1103/PRXQuantum.6.010342 Abstract: Engineering deterministic photonic gates with simple resources is one of the long-standing challenges in photonic quantum computing. Here, we design a passive conditional gate between copropagating photons using an array of only two-level emitters. The key resource [...]

Low crosstalk modular flip-chip architecture for coupled superconducting qubits

Marcelo Castellanos2025-04-29T11:13:21+02:00Tags: Applied. , Physics|

Authors: Ihssen, Soeren; Geisert, Simon; Jauma, Gabriel; Winkel, Patrick; Spiecker, Martin; Zapata, Nicolas; Gosling, Nicolas; Paluch, Patrick; Pino, Manuel; Reisinger, Thomas; Wernsdorfer, Wolfgang; Garcia-Ripoll, Juan Jose; Pop, Ioan M. Journal: APPLIED PHYSICS LETTERS Publication date: 2025/03/01 DOI: 10.1063/5.0245667 Abstract: We present a flip-chip architecture for an array of coupled superconducting qubits, in which circuit components [...]

Electron Scattering Cross Sections from Thiazole for Impact Energies Ranging from 1 to 1000 eV

Marcelo Castellanos2025-04-29T11:13:28+02:00Tags: Biochemistry & Molecular Biology; Chemistry, Multidisciplinary. |

Authors: Garcia-Abenza, Adrian; Lozano, Ana I.; Oller, Juan C.; Rosado, Jaime; Blanco, Francisco; Limao-Vieira, Paulo; Garcia, Gustavo Journal: MOLECULES Publication date: 2025/03/01 DOI: 10.3390/molecules30051097 Abstract: Total electron scattering cross sections (TCSs), in the energy range of 1-100 eV, have been measured with a high-resolution magnetically confined electron transmission apparatus, with total uncertainty limits estimated to [...]

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 [...]

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 [...]

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 [...]

Improving quantum metrology protocols with programmable photonic circuits

Marcelo Castellanos2025-04-29T11:12:59+02:00Tags: Applied. , Multidisciplinary; Optics; Physics, Nanoscience & Nanotechnology; Materials Science|

Authors: de las Heras, Alberto Munoz; Porras, Diego; Gonzalez-Tudela, Alejandro Journal: NANOPHOTONICS Publication date: 2025/02/20 DOI: 10.1515/nanoph-2024-0640 Abstract: Photonic quantum metrology enables the measurement of physical parameters with precision surpassing classical limits by using quantum states of light. However, generating states providing a large metrological advantage is hard because standard probabilistic methods suffer from low [...]

Validity condition for high-fidelity digitized quantum annealing

Marcelo Castellanos2025-04-29T11:12:56+02:00Tags: Atomic, Molecular & Chemical. , Optics; Physics|

Authors: Santos, Alan C. Journal: PHYSICAL REVIEW A Publication date: 2025/02/18 DOI: 10.1103/PhysRevA.111.022618 Abstract: Digitizing an adiabatic evolution is a strategy able to combine the good performance of gate-based quantum processors with the advantages of adiabatic algorithms, thus providing a hybrid model for efficient quantum information processing. In this work we develop validity conditions for [...]

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