6 citations · 6 across the 8 of their papers we have counts for
9 papers · 1 filter
Magic Quantum Code Surgery
Kathleen Chang, Anasuya Lyons, Yuanjie Ren +5
Non-Clifford operations required for universal quantum computation can be implemented by measuring logical Clifford operators. We present a generalized framework to fault-tolerantl…
Untangling QLDPC Codes with Biased Noise Ancilla
Runjiang Bi, Kathleen Chang, Shruti Puri
Remarkable technical progress has made high-rate, high-distance, quantum low-density parity-check codes (QLDPC) promising candidates for scalable quantum computing. However, it is…
Constant-Time Surgery on 2D Hypergraph Product Codes with Near-Constant Space Overhead
Kathleen Chang, Zhiyang He, Theodore J. Yoder +2
Generalized code surgery is a versatile and low-overhead technique for performing fault-tolerant computation on quantum low-density parity-check (qLDPC) codes. In many settings, su…
Constant-Overhead Addressable Gates via Single-Shot Code Switching
Louis Golowich, Kathleen Chang, Guanyu Zhu
It is a major challenge to perform addressable and parallel logical operations on constant-rate quantum LDPC (qLDPC) codes. Indeed, the overhead of targeting specific logical qubit…
Minimum-Weight Parity Factor Decoder for Quantum Error Correction
Yue Wu, Binghong Li, Kathleen Chang +2
Fast and accurate quantum error correction (QEC) decoding is crucial for scalable fault-tolerant quantum computation. Most-Likely-Error (MLE) decoding, while being near-optimal, is…
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…
Taming coherent noise with teleportation
Kathleen Chang, Qile Su, Shruti Puri
Compared to the more widely studied Pauli errors, coherent errors present several new challenges in quantum computing and quantum error correction (QEC). For example, coherent erro…
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…
A mid-circuit erasure check on a dual-rail cavity qubit using the joint-photon number-splitting regime of circuit QED
Stijn J. de Graaf, Sophia H. Xue, Benjamin J. Chapman +8
Quantum control of a linear oscillator using a static dispersive coupling to a nonlinear ancilla underpins a wide variety of experiments in circuit QED. Extending this control to m…