TY - GEN
T1 - Reversing the weak quantum measurement for a photonic qubit
AU - Kim, Yong Su
AU - Cho, Young Wook
AU - Ra, Young Sik
AU - Kim, Yoon Ho
PY - 2010
Y1 - 2010
N2 - We demonstrate the conditional reversal of a weak quantum measurement on a photonic qubit. The state recovery fidelity, determined by quantum process tomography, is shown to be over 94% for partial-collapse strength up to 0.9. We also experimentally study information gain due to the weak measurement and discuss the role of the reversing operation as an information erasure.
AB - We demonstrate the conditional reversal of a weak quantum measurement on a photonic qubit. The state recovery fidelity, determined by quantum process tomography, is shown to be over 94% for partial-collapse strength up to 0.9. We also experimentally study information gain due to the weak measurement and discuss the role of the reversing operation as an information erasure.
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M3 - Conference contribution
AN - SCOPUS:77957602568
SN - 9781557528902
T3 - Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010
BT - Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference
T2 - Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010
Y2 - 16 May 2010 through 21 May 2010
ER -