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quant-ph2026
The Find Rows and Columns and Decode algorithm for quantum expander codes
Dimiter Ostrev
A new adaptation of the Find Erasures and Decode algorithm from classical to quantum expander codes is presented. It runs in linear time and is parallelizable to logarithmic depth.…
quant-ph2024
Canonical Form and Finite Blocklength Bounds for Stabilizer Codes
Dimiter Ostrev
First, a canonical form for stabilizer parity check matrices of arbitrary size and rank is derived. Next, it is shown that the closely related canonical form of the Clifford group…
quant-ph2015
The structure of optimal and nearly-optimal quantum strategies for non-local XOR games
Dimiter Ostrev
We study optimal and nearly-optimal quantum strategies for non-local XOR games. First, we prove the following general result: for every non-local XOR game, there exists a set of re…