Useless Qubits in "Relativistic Quantum Information"

Abstract

I draw attention to previous work that shows that the observables corresponding to relativistic quantum field modes commonly employed in papers on "relativistic quantum information" cannot be measured by ideal measurements.

2 pages

References in corpus (1)

• Measurability of Wilson loop operators

Cited by in corpus (6)

• General Relativistic Quantum Optics: Finite-size particle detector models in curved spacetimes
• Impossible measurements require impossible apparatus
• What makes a particle detector click
• The First Law of Quantum Field Thermodynamics
• Relativistic quantum information theory and quantum reference frames
• Measurements in QFT: Weakly coupled local particle detectors and entanglement harvesting