Toward quantum state tomography of a single polariton state of an atomic ensemble

TY - JOUR

T1 - Toward quantum state tomography of a single polariton state of an atomic ensemble

AU - Christensen, S.L.

AU - Béguin, J.B.

AU - Sørensen, H.L.

AU - Bookjans, E.

AU - Oblak, D.

AU - Müller, J.H.

AU - Appel, J.

AU - Polzik, E.S.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - We present a proposal and a feasibility study for the creation and quantum state tomography of a single polariton state of an atomic ensemble. The collective non-classical and non-Gaussian state of the ensemble is generated by detection of a single forward-scattered photon. The state is subsequently characterized by atomic state tomography performed using strong dispersive light-atom interaction followed by a homodyne measurement on the transmitted light. The proposal is backed by preliminary experimental results showing projection noise limited sensitivity and a simulation demonstrating the feasibility of the proposed method for the detection of a non-classical and non-Gaussian state of the mesoscopic atomic ensemble. This work represents the first attempt at hybrid discrete-continuous variable quantum state processing with atomic memories.

AB - We present a proposal and a feasibility study for the creation and quantum state tomography of a single polariton state of an atomic ensemble. The collective non-classical and non-Gaussian state of the ensemble is generated by detection of a single forward-scattered photon. The state is subsequently characterized by atomic state tomography performed using strong dispersive light-atom interaction followed by a homodyne measurement on the transmitted light. The proposal is backed by preliminary experimental results showing projection noise limited sensitivity and a simulation demonstrating the feasibility of the proposed method for the detection of a non-classical and non-Gaussian state of the mesoscopic atomic ensemble. This work represents the first attempt at hybrid discrete-continuous variable quantum state processing with atomic memories.

UR - http://www.scopus.com/inward/record.url?scp=84873307097&partnerID=8YFLogxK

U2 - 10.1088/1367-2630/15/1/015002

DO - 10.1088/1367-2630/15/1/015002

M3 - Journal article

AN - SCOPUS:84873307097

SN - 1367-2630

VL - 15

SP - 015002

JO - New Journal of Physics

JF - New Journal of Physics

ER -