nLab quantum state tomography

Idea

In quantum information theory, by quantum state tomography one means quantum measurement-protocols which, when applied successively to copies of one and the same quantum state (collapsing one copy at a time), allow to determine that quantum state, to prescribed accuracy.

References

• Joseph B. Altepeter, Daniel F.V. James & Paul G. Kwiat, Qubit Quantum State Tomography, in Quantum State Estimation, Lecture Notes in Physics 649, Springer (2004) [doi:10.1007/978-3-540-44481-7_4, pdf]

See also:

• Wikipedia, Quantum tomography

• Matthias Christandl, Renato Renner, Reliable Quantum State Tomography, Physical Review Letters 109 120403 (2012) [arXiv:1108.5329, doi:10.1103/PhysRevLett.109.120403]