Reconstructing a pure state of a spin s through three Stern-Gerlach measurements

Abstract

Consider a spin s prepared in a pure state. It is shown that, generically, the moduli of the (2s+1) spin components along three directions in space determine the state unambiguously. These probabilities are accessible experimentally by means of a standard Stern-Gerlach apparatus. To reconstruct a pure spin state is therefore possible on the basis of 3(2s+1) measured intensities.

4 pages, revtex

References in corpus (1)

• A magnetic tomography of a cavity state

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