7 papers
Remote Entanglement in Lattice Surgery: To Distill, or Not to Distill
Sitong Liu, John Stack, Ke Sun +5
Distributed quantum computing can potentially address the scalability challenge by networking processors through photon-mediated remote entanglement. Prior approaches assumed that…
Heterogeneous quantum error-correcting codes
Omid Khosravani, Guillermo Escobar-Arrieta, Kenneth R. Brown +1
We introduce heterogeneous quantum error-correcting codes composed of qubit types with distinct error channels and study their performance in the code-capacity regime using maximum…
Unbiased observable estimation with approximate channels in fault-tolerant quantum computation
Dmitrii Khitrin, Kenneth R. Brown, Abhinav Anand
Unitary errors, such as those arising from fault-tolerant compilation of quantum algorithms, systematically bias observable estimates. Correcting this bias typically requires addit…
Dynamic local single-shot checks for toric codes
Yingjia Lin, Abhinav Anand, Kenneth R. Brown
Quantum error correction typically requires repeated syndrome extraction due to measurement noise, which results in substantial time overhead in fault-tolerant computation. Single-…
Stabilizer configuration interaction: Finding molecular subspaces with error detection properties
Abhinav Anand, Kenneth R. Brown
In this work, we explore a new approach to designing both algorithms and error detection codes for preparing approximate ground states of molecules. We propose a classical algorith…
Leveraging commuting groups for an efficient variational Hamiltonian ansatz
Abhinav Anand, Kenneth R. Brown
Efficiently calculating the low-lying eigenvalues of Hamiltonians, written as sums of Pauli operators, is a fundamental challenge in quantum computing. While various methods have b…