66 citations · 185 across the 5 of their papers we have counts for
4 papers · 1 filter
Kitaev's quantum double model as an error correcting code
Shawn X. Cui, Dawei Ding, Xizhi Han +4
Kitaev's quantum double models in 2D provide some of the most commonly studied examples of topological quantum order. In particular, the ground space is thought to yield a quantum…
Approximate Quantum Error Correction Revisited: Introducing the Alpha-bit
Patrick Hayden, Geoffrey Penington
We establish that, in an appropriate limit, qubits of communication should be regarded as composite resources, decomposing cleanly into independent correlation and transmission com…
Out-of-time-order Operators and the Butterfly Effect
Jordan S. Cotler, Dawei Ding, Geoffrey R. Penington
Out-of-time-order (OTO) operators have recently become popular diagnostics of quantum chaos in many-body systems. The usual way they are introduced is via a quantization of classic…
Locality from the Spectrum
Jordan S. Cotler, Geoffrey R. Penington, Daniel H. Ranard
Essential to the description of a quantum system are its local degrees of freedom, which enable the interpretation of subsystems and dynamics in the Hilbert space. While a choice o…