Year: 2023
Type: article
Abstract: We construct and study the simplest universal dissipative Lindblad master equation for many-body systems with the purpose of a new dissipative extension of existing nonrelativistic theories of fundamental spontaneous decoherence and spontaneous wave function collapse in nature. It is universal as it is written in terms of second-quantized mass density $\stackrel{\ifmmode \hat{}\else \^{}\fi{}}{\ensuremath{\varrho}}$ and current $\stackrel{\ifmmode \hat{}\else \^{}\fi{}}{\mathbf{J}}$, thus making it independent of the material structure and its parameters. Assuming linear friction in the current, we find that the dissipative structure is strictly constrained. Following the general structure of our dissipative Lindblad equation, we derive and analyze the dissipative extensions of the two most known spontaneous wave function collapse models, the Di\'osi-Penrose and the continuous spontaneous localization models.
Source: Physical Review A
Institutions: University of Trieste, Istituto Nazionale di Fisica Nucleare, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Queen's University Belfast, Centro Ricerche Enrico Fermi, Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati, Rutgers, The State University of New Jersey, Eötvös Loránd University, HUN-REN Wigner Research Centre for Physics
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,675
Funders: Silicon Valley Community Foundation, John Templeton Foundation, Fetzer Institute, Foundational Questions Institute, Istituto Nazionale di Fisica Nucleare Sezione di Padova, Università degli Studi di Trieste, Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Engineering and Physical Sciences Research Council, National Research, Development and Innovation Office, HORIZON EUROPE European Innovation Council
Awards: G1190005962, G2941870175, G3488833788, EPSRC-SFI: Non-Equilibrium Steady-States of Quantum many-body systems: uncovering universality and thermodynamics (QuamNESS), G4833133300, G5206657365, G5623662747, G5629115414, QUBO: Exploring the QUantum Boundaries of many-body systems – an Odyssey into the gravity related collapse models, G6346389978
OpenAlex ID: W4383341575