72 citations · 215 across the 11 of their papers we have counts for
12 papers · 1 filter
Fault-tolerant and fully addressable unitary logical gates via round-robin sparsification
Kaavya Sahay, Cody Jones
For quantum low-density parity check (qLDPC) codes, the ability to manipulate individual logical units of information, i.e. the use of addressable gates, enables maximal utility of…
Walking Floquet code circuits for zero-overhead leakage reduction
Hanna Westerheim, Kaavya Sahay, Shruti Puri
Leakage, occurring when a qubit undetectably exits the computational subspace, poses a significant challenge for quantum error correction by inducing correlated errors in space and…
Architecting Early Fault Tolerant Neutral Atoms Systems with Quantum Advantage
Sahil Khan, Sayam Sethi, Kaavya Sahay +6
Recent advancements in neutral atom platforms have enabled exploration of early fault-tolerant (FT) architectures for applications with quantum advantage, such as quantum dynamics…
A matching decoder for bivariate bicycle codes
Kaavya Sahay, Dominic J. Williamson, Benjamin J. Brown
The discovery of new quantum error-correcting codes that encode several logical qubits into relatively few physical qubits motivates the development of efficient and accurate metho…
Fold-transversal surface code cultivation
Kaavya Sahay, Pei-Kai Tsai, Kathleen Chang +4
Magic state cultivation is a state-of-the-art protocol to prepare ultra-high fidelity non-Clifford resource states for universal quantum computation. It offers a significant reduct…
Error correction of transversal CNOT gates for scalable surface code computation
Kaavya Sahay, Yingjia Lin, Shilin Huang +2
Recent experimental advances have made it possible to implement logical multi-qubit transversal gates on surface codes in a multitude of platforms. A transversal controlled-NOT (tC…
Surface Code with Imperfect Erasure Checks
Kathleen Chang, Shraddha Singh, Jahan Claes +3
Recently, a lot of effort has been devoted towards designing erasure qubits in which dominant physical noise excites leakage states whose population can be detected and returned to…
Minimising surface-code failures using a color-code decoder
Asmae Benhemou, Kaavya Sahay, Lingling Lao +1
The development of practical, high-performance decoding algorithms reduces the resource cost of fault-tolerant quantum computing. Here we propose a decoder for the surface code tha…
High threshold codes for neutral atom qubits with biased erasure errors
Kaavya Sahay, Junlan Jin, Jahan Claes +2
The requirements for fault-tolerant quantum error correction can be simplified by leveraging structure in the noise of the underlying hardware. In this work, we identify a new type…
Tailoring fusion-based error correction for high thresholds to biased fusion failures
Kaavya Sahay, Jahan Claes, Shruti Puri
We introduce fault-tolerant (FT) architectures for error correction with the XZZX cluster state based on performing measurements of two-qubit Pauli operators and $X\ot…
Dual-rail encoding with superconducting cavities
James D. Teoh, Patrick Winkel, Harshvardhan K. Babla +15
The design of quantum hardware that reduces and mitigates errors is essential for practical quantum error correction (QEC) and useful quantum computation. To this end, we introduce…
A decoder for the triangular color code by matching on a Möbius strip
Kaavya Sahay, Benjamin J. Brown
The color code is remarkable for its ability to perform fault-tolerant logic gates. This motivates the design of practical decoders that minimise the resource cost of color-code qu…