Universal quantum data compression via nondestructive tomography
Charles H. Bennett, Aram W. Harrow, Seth Lloyd · Physical Review A · 2006
Quantum-state tomography---the practice of estimating a quantum state by performing measurements on it---is useful in a variety of contexts. We introduce ``gentle tomography'' as a version of tomography that preserves the measured quantum data. As an application of gentle tomography, we describe a polynomial-time method for universal source coding.