From the 1 of 13 linked papers with an AI index.
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Qubit Loss Inference with Stabilizer Codes without Leakage Detection Units
Shin Nishio, Takeaki Uno, Fumiyoshi Kobayashi +2
Qubit loss occurs when the physical carrier of a qubit leaves the computational system without directly revealing the event's location. Such errors are a major obstacle to fault-to…
Anticipating Decoder Side-channel Attacks in Fault-tolerant Quantum Computers
Shashvat Shukla, Dan E. Browne, Shin Nishio
The paper identifies a new side‑channel attack on fault‑tolerant quantum computers that exploits syndrome data sent to the decoder to infer which logical gates are being executed,…
Efficiently simulable quantum circuits with large entanglement, magic, and non-Gaussianity via code-compiled tensor networks
Aydin Deger, Stergios Koutsioumpas, Mark Webster +3
We introduce a family of quantum circuits that possess standard indicators of classical simulation hardness including high entanglement entropy, magic, and non-Gaussianity, yet adm…
Sequences of Bivariate Bicycle Codes from Covering Graphs
Benjamin C. B. Symons, Abhishek Rajput, Dan E. Browne
We show that given an instance of a bivariate bicycle (BB) code, it is possible to generate an infinite sequence of new BB codes using increasingly large covering graphs of the ori…
Efficient Preparation of Graph States using the Quotient-Augmented Strong Split Tree
Nicholas Connolly, Shin Nishio, Dan E. Browne +2
Graph states are a key resource for measurement-based quantum computation and quantum networking, but state-preparation costs limit their practical use. Graph states related by loc…
High-performance syndrome extraction circuits for quantum codes
Armands Strikis, Dan E. Browne, Michael E. Beverland
We present a fast and effective framework for analysing and designing syndrome-extraction circuits (SECs). Our approach is based on left-right circuits, a general design for SECs w…