Quantum-state tomography for spin-l systems
Physical Review A. Atomic, Molecular, and Optical Physics Volume 69 Issue 4
Page 042108-1-042108-8
published_at 2004-04-23
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| File | |
| Title ( eng ) |
Quantum-state tomography for spin-l systems
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| Creator |
Takeuchi Shigeki
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| Source Title |
Physical Review A. Atomic, Molecular, and Optical Physics
|
| Volume | 69 |
| Issue | 4 |
| Start Page | 042108-1 |
| End Page | 042108-8 |
| Abstract |
We show that the density matrix of a spin-l system can be described entirely in terms of the measurement statistics of projective spin measurements along a minimum of 4l+1 different spin directions. It is thus possible to represent the complete quantum statistics of any N-level system within the spherically symmetric threedimensional space defined by the spin vector. An explicit method for reconstructing the density matrix of a spin-1 system from the measurement statistics of five nonorthogonal spin directions is presented and the generalization to spin-l systems is discussed.
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 2004-04-23 |
| Rights |
Copyright (c) 2004 American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 1094-1622
[DOI] 10.1103/PhysRevA.69.042108
[NCID] AA10764867
[DOI] http://dx.doi.org/10.1103/PhysRevA.69.042108
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