Noncyclic Pancharatnam phase for mixed state SU ( 2 ) evolution in neutron polarimetry

We have measured the Pancharatnam relative phase for spin- 1 / 2 states. In a neutron polarimetry experiment the minima and maxima of intensity modulations, giving the Pancharatnam phase, were determined. We also considered general SU ( 2 ) evolution for mixed states. The results are in good agreeme...

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Published inPhysics letters. A Vol. 342; no. 1; pp. 48 - 52
Main Authors Klepp, J., Sponar, S., Hasegawa, Y., Jericha, E., Badurek, G.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 04.07.2005
Subjects
Geometric phase
Neutron polarimetry
03.65.Vf
42.50.-p
03.75.Be
Neutron polarimetry
Geometric phase
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Summary:We have measured the Pancharatnam relative phase for spin- 1 / 2 states. In a neutron polarimetry experiment the minima and maxima of intensity modulations, giving the Pancharatnam phase, were determined. We also considered general SU ( 2 ) evolution for mixed states. The results are in good agreement with theory.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2005.05.038