From the 3 of 6 linked papers with an AI index.
6 papers
The Locality Gap: A Thermodynamic Law for Objective Facts
Maxim V. Churilov
Objective facts in quantum Darwinism are values recorded redundantly in many independently accessible fragments of the environment. Redundancy does not create additional logical in…
Finite Quantum Histories: Holonomy Spectra, Minimal Clocks, and Exact Clock-Change Covariance
Maxim V. Churilov
We solve cyclic finite-dimensional quantum histories for arbitrary time-dependent unitary steps, without assuming that one step has finite order. The propagation Hamiltonian is a u…
Fixed-Boost Wigner Noise: Strict Trace-Distance Contraction without Quantum Degradability
Maxim V. Churilov
A Lorentz boost acts on the canonical spin of a massive particle through a momentum-dependent Wigner rotation. We show that, for one fixed observer boost, reducing over an uncertai…
Maximal Classicalization of Finite-Group Quantum Reference-Frame Noise
Maxim V. Churilov
The paper analyzes how a finite quantum reference frame with group-valued misalignment can be reduced to classical convolution, proving that a representation containing all irreduc…
Ancilla-Depth Phase Diagrams for Quantum Reference-Frame Comparison
Maxim V. Churilov
The paper studies how the size of an ancillary quantum system limits the ability to compare two noisy quantum reference frames, showing that exact simulation with an r‑dimensional…
Passive spectral-admittance bounds and exact continuum certificates for multiresonator quantum-memory interfaces
Maxim V. Churilov
Broadband quantum-memory interfaces are often assessed by center-frequency impedance matching or by a sampled efficiency curve. Neither supplies an operational continuous-band cert…