6 papers
The EU Quantum Flagship's Key Performance Indicators for Quantum Computing
Zoltán Zimborás, Attila Portik, David Aguirre +10
As quantum processors continue to scale in size and complexity, the need for well-defined, reproducible, and technology-agnostic performance metrics becomes increasingly critical.…
Spectral Properties Versus Magic Generation in -doped Random Clifford Circuits
Dominik Szombathy, Angelo Valli, Cătălin Paşcu Moca +4
We study the emergence of complexity in deep random -qubit -gate doped Clifford circuits, as reflected in their spectral properties and in magic generation, characterized by…
Optimal number of stabilizer measurement rounds in an idling surface code patch
Áron Márton, János K. Asbóth
Logical qubits can be protected against environmental noise by encoding them into a highly entangled state of many physical qubits and actively intervening in the dynamics with sta…
Characterization of errors in a CNOT between surface code patches
Bálint Domokos, Áron Márton, János K. Asbóth
As current experiments already realize small quantum circuits on error corrected qubits, it is important to fully understand the effect of physical errors on the logical error chan…
Coherent errors in stabilizer codes caused by quasistatic phase damping
Dávid Pataki, Áron Márton, János K. Asbóth +1
Quantum error correction is a key challenge for the development of practical quantum computers, a direction in which significant experimental progress has been made in recent years…
Topological fine structure of an energy band
Hui Liu, Cosma Fulga, Emil J. Bergholtz +1
A band with a nonzero Chern number cannot be fully localized by weak disorder. There must remain at least one extended state, which ``carries the Chern number.'' Here we show that…