no code implementations • 30 Oct 2020 • Xinyu Tan, Narayanan Rengaswamy, Robert Calderbank
We construct a graph whose vertices are Pauli matrices, and two vertices are connected by directed edges if and only if they commute.
Quantum Physics
1 code implementation • 9 Mar 2020 • Narayanan Rengaswamy, Kaushik P. Seshadreesan, Saikat Guha, Henry D. Pfister
For space-based laser communications, when the mean photon number per received optical pulse is much smaller than one, there is a large gap between communications capacity achievable with a receiver that performs individual pulse-by-pulse detection, and the quantum-optimal "joint-detection receiver" that acts collectively on long codeword-blocks of modulated pulses; an effect often termed "superadditive capacity".
Quantum Physics Information Theory Information Theory
1 code implementation • 30 Jun 2019 • Narayanan Rengaswamy, Robert Calderbank, Swanand Kadhe, Henry D. Pfister
Furthermore, we show that any circuit that normalizes the stabilizer of the code can be transformed into a circuit that centralizes the stabilizer, while realizing the same logical operation.
Quantum Physics Information Theory Information Theory
1 code implementation • 19 Mar 2018 • Narayanan Rengaswamy, Robert Calderbank, Swanand Kadhe, Henry D. Pfister
We propose a mathematical framework for synthesizing physical circuits that implement logical Clifford operators for stabilizer codes.
Information Theory Information Theory Quantum Physics 15Axx, 15B10, 20D45, 51A50, 68R01, 68W01, 81R05, 94B05
