65 citations · 77 across the 4 of their papers we have counts for
4 papers
Exact Performance of Concatenated Quantum Codes
Benjamin Rahn, Andrew C. Doherty, Hideo Mabuchi
When a logical qubit is protected using a quantum error-correcting code, the net effect of coding, decoherence (a physical channel acting on qubits in the codeword) and recovery ca…
Exact and Approximate Performance of Concatenated Quantum Codes
Benjamin Rahn, Andrew C. Doherty, Hideo Mabuchi
We derive the effective channel for a logical qubit protected by an arbitrary quantum error-correcting code, and derive the map between channels induced by concatenation. For certa…
A Balanced Truncation Primer
Benjamin Rahn
Balanced truncation, a technique from robust control theory, is a systematic method for producing simple approximate models of complex linear systems. This technique may have signi…
Robust quantum computation by simulation
Seth Lloyd, Benjamin Rahn, Charlene Ahn
Simulation of quantum systems that provide intrinsically fault-tolerant quantum computation is shown to preserve fault tolerance. Errors committed in the course of simulation are e…