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7 papers · 2 filters
Entanglement and Minimal Hilbert Space in the Classical Dual States of Quantum Theory
Diego J. Cirilo-Lombardo, Norma G. Sanchez
A precise physical description and understanding of the classical dual content of quantum theory is necessary in many disciplines today: from concepts and interpretation to quantum…
Fundamental Limits to Cat-Code Qubits from Chaos-Assisted Tunneling
Lionel E. Martínez, Ignacio García-Mata, Diego A. Wisniacki
We show that chaos-assisted tunneling (CAT) imposes an intrinsic limit to the protection of Kerr-cat qubits. In the static effective description, tunneling between the quasidegener…
Ruelle-Pollicott Decay of Out-of-Time-Order Correlators in Many-Body Systems
Jerónimo Duarte, Ignacio García-Mata, Diego A. Wisniacki
The out-of-time-order correlator (OTOC) quantifies information scrambling in quantum systems and serves as a key diagnostic of quantum chaos. In one-body systems with a classical c…
Purcell Enhancement and Suppression in Laser Cooling of Yb:YLF Nanocrystals in a Fabry-Pérot Microcavity
Lucas Mendicino, Franco Mayo, Christian Schmiegelow +1
We investigate the improvement of anti-Stokes laser cooling of a Yb:YLF nanocrystal in a Fabry-Pérot microcavity via the Purcell effect. Our analysis accounts for both the e…
Ergotropic characterization of continuous variable entanglement
Beatriz Polo-Rodríguez, Federico Centrone, Gerardo Adesso +1
Continuous-variable quantum thermodynamics in the Gaussian regime provides a promising framework for investigating the energetic role of quantum correlations, particularly in optic…
Determining the N-representability of a reduced density matrix via unitary evolution and stochastic sampling
Gustavo. E. Massaccesi, Ofelia. B. Oña, Pablo Capuzzi +6
The N-representability problem consists in determining whether, for a given p-body matrix, there exists at least one N-body density matrix from which the p-body matrix can be obtai…