Working papers
Research
Quantum fields, randomness, computation, and cryptography.
Work in progress. Not all claims have been verified by a human.
-
Quantum fields · Randomness
Spacelike Guessing of Quantum Randomness
Bounds on guessing a vacuum-generated bit from a spacelike region.
-
Quantum computation
Boolean Oracles by Waiting
A fixed two-body Hamiltonian implements Boolean oracles through its stopping time, with bounds on the required action.
-
Information theory · Prediction
Identical Entropy Profiles, Different Prediction Costs
Stationary binary sources with the same entropy profiles can have sharply different prediction costs.
-
Information theory · Randomness
On the Min-Entropy Asymptotics of Binary Context Graphs
Minimum mean cycles, algebraic noise-floor criteria, and finite-block certificates for binary sources.
-
Quantum fields · Interference
Soft-pair which-path records from a gapped detector
A soft pair-emission channel records path information even when slow switching suppresses detector excitation.
-
Quantum optics
Two scales of nonclassicality near coherent states
Optical moments and Wigner negativity respond on different scales near coherent states.
-
Quantum fields · Cryptography
Causal-Exclusion Authentication in Quantum Field Theory
Commuting local algebras turn a causal access restriction into a statistical authentication test.
-
Quantum fields · Cryptography
Modular Localization for Private Field Encodings
Coherent field encodings with explicit decoding error, leakage, and restricted preparation bounds.