2 citations · 3 across the 10 of their papers we have counts for
4 papers · 1 filter
Quantum minimum description of density matrices
Patrick Hayden, Alexander Maloney, Jinzhao Wang +1
We study a variant of Schumacher compression. The task asks for the minimal memory cost for compressing many copies of a density matrix with known spectrum and unknown eigenbasis,…
Refined sample complexities from the tomographic rate function
Arick Grootveld, Alexander Maloney, Jason Pollack +1
Protocols for quantum state tomography can be characterized either by their sample complexity or by the tomographic rate function that governs the large deviation behaviour of erro…
The Optimal Rate Function in Covariant Quantum State Tomography
Arick Grootveld, Alexander Maloney, Jason Pollack +1
The problem of quantum tomography is to estimate an unknown quantum state from a measurement of copies of . One can ask which tomography protocol, i.e.\ which choice of…
Lindblad evolution as gradient flow
Greg Kaplanek, Alexander Maloney, Jason Pollack +1
We give a simple argument that, for a large class of jump operators, the Lindblad evolution can be written as a gradient flow in the space of density operators acting on a Hilbert…