dorsal/arxiv
View SchemaReconstruction of spin states and its conceptual implications
| Authors | Stefan Weigert |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9809065 |
| URL | https://arxiv.org/abs/quant-ph/9809065 |
Abstract
State reconstruction for quantum spins is reviewed. Emphasis is on non-tomographic approaches which are based on measurements performed with a Stern-Gerlach apparatus. Two consequences of successfully implemented state reconstruction are pointed out. First, it allows one to determine experimentally the expectation value of an arbitrary operator without a device measuring it. Second, state reconstruction suggests a reformulation of Schroedinger's equation in terms of expectation values only, without explicit reference to a wave function or a density operator.
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"date_created": "2026-03-02T18:02:45.133000Z",
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"abstract": "State reconstruction for quantum spins is reviewed. Emphasis is on\nnon-tomographic approaches which are based on measurements performed with a\nStern-Gerlach apparatus. Two consequences of successfully implemented state\nreconstruction are pointed out. First, it allows one to determine\nexperimentally the expectation value of an arbitrary operator without a device\nmeasuring it. Second, state reconstruction suggests a reformulation of\nSchroedinger\u0027s equation in terms of expectation values only, without explicit\nreference to a wave function or a density operator.",
"arxiv_id": "quant-ph/9809065",
"authors": [
"Stefan Weigert"
],
"categories": [
"quant-ph"
],
"title": "Reconstruction of spin states and its conceptual implications",
"url": "https://arxiv.org/abs/quant-ph/9809065"
},
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