Showing quant-phShow all
2 papers · 1 filter
quant-ph2026
Krylov geometry and optimal recovery under uncertain coherent noise
Abhishek Chowdhury
Recovery from a coherent rotation with an unobserved angle depends on both the encoding and what calibration reveals about the noise. We determine their combined limit for a known…
quant-ph2024
Krylov Complexity of Time-Dependent Optical Hamiltonians
Abhishek Chowdhury, Aryabrat Mahapatra, Ajit Prasad Mahapatra
State Krylov complexity becomes experimentally concrete in driven optics because its chain can be interrogated through excitation counting, parity, return probability, and phase. I…