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9 papers · 2 filters
Bulk and Boundary Quantum Phase Transitions in a Square Rydberg Atom Array
Marcin Kalinowski, Rhine Samajdar, Roger G. Melko +3
Motivated by recent experimental realizations of exotic phases of matter on programmable quantum simulators, we carry out a comprehensive theoretical study of quantum phase transit…
Near-optimal covariant quantum error-correcting codes from random unitaries with symmetries
Linghang Kong, Zi-Wen Liu
Quantum error correction and symmetries play central roles in quantum information science and physics. It is known that quantum error-correcting codes that obey (are covariant with…
Perspective-neutral approach to quantum frame covariance for general symmetry groups
Anne-Catherine de la Hamette, Thomas D. Galley, Philipp A. Hoehn +2
In the absence of external relata, internal quantum reference frames (QRFs) appear widely in the literature on quantum gravity, gauge theories and quantum foundations. Here, we ext…
The Relational Interpretation of Quantum Physics
Carlo Rovelli
The relational interpretation (or RQM, for Relational Quantum Mechanics) solves the measurement problem by considering an ontology of sparse relative events, or "facts". Facts are…
General features of the thermalization of particle detectors and the Unruh effect
T. Rick Perche
We study the thermalization of smeared particle detectors that couple locally to operator in a quantum field theory in curved spacetimes. We show that if the field state sati…
Measurements in QFT: Weakly coupled local particle detectors and entanglement harvesting
Daniel Grimmer, Bruno de S. L. Torres, Eduardo Martín-Martínez
We present a comparison of the AQFT-based Fewster-Verch framework with the Unruh-DeWitt particle detector models commonly employed in relativistic quantum information and QFT in cu…