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quant-ph2026
Polynomial-time simulation of non-Clifford quantum error correction
Serban Cercelescu, Mark Koch, Arthur Pesah
We show that every intermediate state of a broad class of non-Clifford quantum error-correction circuits is a third-order phase-polynomial state, even under stochastic Pauli noise.…
quant-ph2026
Why Are We Unrolling? The Importance of Structured Quantum Programs for Compilation
Damian Rovara, Daniel Haag, Mark Koch +8
As quantum software stacks scale up to support future fault-tolerant quantum hardware and algorithms, quantum compilation is becoming an increasingly important component of the sta…
quant-ph2025
Helios: A 98-qubit trapped-ion quantum computer
Anthony Ransford, M. S. Allman, Jake Arkinstall +183
We report on Quantinuum Helios, a 98-qubit trapped-ion quantum processor based on the quantum charge-coupled device (QCCD) architecture. Helios features Ba hyperfine…