TY - JOUR
T1 - State tomography of a qubit through scattering of a probe qubit
AU - De Pasquale, Antonella
AU - Yuasa, Kazuya
AU - Nakazato, Hiromichi
PY - 2009/11/18
Y1 - 2009/11/18
N2 - We discuss the state tomography of a fixed qubit (a spin-1/2 target particle), which is in general in a mixed state, through one-dimensional scattering of a probe qubit off the target. Two strategies are presented by making use of different degrees of freedom of the probe, i.e. spin and momentum. Remarkably, the spatial degree of freedom of the probe can be utilized for optimizing the tomographic schemes.
AB - We discuss the state tomography of a fixed qubit (a spin-1/2 target particle), which is in general in a mixed state, through one-dimensional scattering of a probe qubit off the target. Two strategies are presented by making use of different degrees of freedom of the probe, i.e. spin and momentum. Remarkably, the spatial degree of freedom of the probe can be utilized for optimizing the tomographic schemes.
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U2 - 10.1103/PhysRevA.80.052111
DO - 10.1103/PhysRevA.80.052111
M3 - Article
AN - SCOPUS:70449955962
VL - 80
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
IS - 5
M1 - 052111
ER -