caa a22 4500 445371382 CHVBK 20180317142947.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s00340-011-4717-7 doi (NATIONALLICENCE)springer-10.1007/s00340-011-4717-7 Measurement schemes for the spin quadratures on an ensemble of atoms [Elektronische Daten] [R. Namiki, S.-I.-R. Tanaka, T. Takano, Y. Takahashi] We consider how to measure collective spin states of an atomic ensemble based on the multi-pass approaches for quantum interface between light and atoms. We find that a scheme with two passages of a light pulse through the atomic ensemble is efficient to implement the homodyne tomography of the spin state. Thereby, we propose to utilize optical pulses as a phase shifter that rotates the quadrature of the spins. This method substantially simplifies the geometry of experimental schemes. Springer-Verlag, 2011 Namiki R. Department of Physics, Graduate School of Science, Kyoto University, 606-8502, Kyoto, Japan aut Tanaka S.-I.-R Department of Physics, Graduate School of Science, Kyoto University, 606-8502, Kyoto, Japan aut Takano T. Department of Physics, Graduate School of Science, Kyoto University, 606-8502, Kyoto, Japan aut Takahashi Y. Department of Physics, Graduate School of Science, Kyoto University, 606-8502, Kyoto, Japan aut Applied Physics B Springer-Verlag 105/2(2011-11-01), 197-201 0946-2171 105:2<197 2011 105 340 https://doi.org/10.1007/s00340-011-4717-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-011-4717-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Namiki R. Department of Physics, Graduate School of Science, Kyoto University, 606-8502, Kyoto, Japan aut NATIONALLICENCE 700 1- Tanaka S.-I.-R Department of Physics, Graduate School of Science, Kyoto University, 606-8502, Kyoto, Japan aut NATIONALLICENCE 700 1- Takano T. Department of Physics, Graduate School of Science, Kyoto University, 606-8502, Kyoto, Japan aut NATIONALLICENCE 700 1- Takahashi Y. Department of Physics, Graduate School of Science, Kyoto University, 606-8502, Kyoto, Japan aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 105/2(2011-11-01), 197-201 0946-2171 105:2<197 2011 105 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer