38 citations · 48 across the 6 of their papers we have counts for
7 papers · 1 filter
Scaling and renormalization in fault-tolerant quantum computers
Maxim Raginsky
This work is concerned with phrasing the concepts of fault-tolerant quantum computation within the framework of disordered systems, Bernoulli site percolation in particular. We sho…
Quantum system identification
Maxim Raginsky
We formulate and study, in general terms, the problem of quantum system identification, i.e., the determination (or estimation) of unknown quantum channels through their action on…
Entropy-energy balance in noisy quantum computers
Maxim Raginsky
We use entropy-energy arguments to assess the limitations on the running time and on the system size, as measured in qubits, of noisy macroscopic circuit-based quantum computers.
Almost any quantum spin system with short-range interactions can support toric codes
Maxim Raginsky
Inspired by Kitaev's argument that physical error correction is possible in a system of interacting anyons, we demonstrate that such "self-correction" is fairly common in spin syst…
A fidelity measure for quantum channels
Maxim Raginsky
We propose a fidelity measure for quantum channels in a straightforward analogy to the corresponding mixed-state fidelity of Jozsa. We describe properties of this fidelity measure…
Strictly contractive quantum channels and physically realizable quantum computers
Maxim Raginsky
We study the robustness of quantum computers under the influence of errors modelled by strictly contractive channels. A channel is defined to be strictly contractive if, for an…