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

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 [...]

Quantum Control of Resonance Lifetimes in Molecular Photodissociation with Intense Laser Fields

Marcelo Castellanos2025-04-29T11:12:59+02:00Tags: Atomic, Chemistry, Molecular & Chemical. , Physical; Physics|

Authors: Garcia-Vela, Alberto Journal: JOURNAL OF CHEMICAL THEORY AND COMPUTATION Publication date: 2025/02/10 DOI: 10.1021/acs.jctc.4c01677 Abstract: Control of molecular reaction dynamics has been pursued in the last decades. Among these reactions are molecular photodissociation processes governed by resonances. Controlling the lifetime of such resonances imply to control the time duration of the processes. Here, some [...]

Microsolvation of cationic alkali dimers in helium: quantum delocalization and solid-like/liquid-like behaviors of He shells

Marcelo Castellanos2025-04-29T11:12:58+02:00Tags: Atomic, Chemistry, Molecular & Chemical. , Physical; Physics|

Authors: Yanes-Rodriguez, Raquel; Villarreal, Pablo; Prosmiti, Rita Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS Publication date: 2025/04/16 DOI: 10.1039/d5cp00318k Abstract: We performed path-integral molecular dynamics (PIMD) simulations in the NVT ensemble to investigate the quantum solvation of Li2+ in He nanoclusters at a low temperature of 2 K. The interaction potentials were modeled using a sum-of-potentials approach, [...]

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 [...]

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 [...]