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quant-ph2026
Need for Coherent Access in Constructing Quantum Cryptography
Minki Hhan, Changhun Oh, Vaughn Sohn
We construct quantum oracles relative to which quantum-secure one-way functions (OWFs) exist but pseudorandom states (PRSs) with superlogarithmic output length do not. At first gla…
quant-ph2026
When to Skip Syndrome Extraction in Surface-GKP Codes
Vaughn Sohn, Changhun Oh
Fault-tolerant quantum error correction requires repeated syndrome extraction to address errors induced by the syndrome-extraction circuit itself. However, repeated syndrome extrac…