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Microwave Quantum Illumination(Quantum Sensor)
Shabir Barzanjeh
Inst i tute of sc ience and technology ( IST) Austr ia
IPM(29.12.2016)
1
Presentation outline
Optical Quantum IlluminationMicrowave-Optical ConvertorQuantum Illumination at the Microwave Wavelengths
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Presentation outline
Optical Quantum IlluminationMicrowave-Optical ConvertorQuantum Illumination at the Microwave Wavelengths
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Standard Illumination(Sensor)
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Quantum Illumination Quantum illumination is a quantum-optical sensing technique in which an entangled source is exploited to improve the detection of a low-reflectivity object that is immersed in a bright thermal background.
S. Lloyd, Science, 321, 1463(2008).
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Quantum Illumination Quantum illumination is a quantum-optical sensing technique in which an entangled source is exploited to improve the detection of a low-reflectivity object that is immersed in a bright thermal background.
Thermal noises(Environment)High temperatureLow reflection
S. Lloyd, Science, 321, 1463(2008).
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Only works for
Quantum Illumination
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Quantum Illumination
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Quantum Illumination
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Quantum Illumination
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Quantum Illumination
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Thermal-photon number
Covariance matrix after reflection
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Phys. Rev. Lett. 101, 253601 (2008).TUDELFT-FEB 9 13
Phys. Rev. Lett. 101, 253601 (2008).TUDELFT-FEB 9 14
BenefitsI. non-invasive, II. high-resolution detection of low reflective objects in noisy
environment.III. Improving detection efficiency even if the original
entanglement is completely destroyed by noisy environment
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BenefitsI. non-invasive, II. high-resolution detection of low reflective objects in noisy
environment.III. Improving detection efficiency even if the original
entanglement is completely destroyed by noisy environment
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BenefitsI. non-invasive, II. high-resolution detection of low reflective objects in noisy
environment.III. Improving detection efficiency even if the original
entanglement is completely destroyed by noisy environment
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In Optical domain
W
• Very noisy environment
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Presentation outline
Optical Quantum IlluminationMicrowave-Optical Convertor Quantum Illumination at the Microwave Wavelengths
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aaxFxH
aaF
Rad
Rad
ˆˆˆˆˆˆˆˆˆ
J. D. Mc. Cullen, P. Meystre and E. M. Wright, Opt. Lett. 9, 193 (1984).
xaaGeaeaEipxaa
eaeaEipxaaxH
titimc
titimc
LL
LL
022
22
)()(21
)()(21)(
Lmc PEmLG /2 /)/(0
Optomechanics
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Optical to Microwave interface
ShB. et. al., Rev. A 84, 042342 (2011).
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Nature Physics 10, 321–326 (2014)
TUDELFT-FEB 9 23
TUDELFT-FEB 9 24
ShB, et.al, PRL, 109, 130503 (2012). TUDELFT-FEB 9 25
Presentation outline
Optical Quantum IlluminationMicrowave-Optical Convertor Quantum Illumination at the Microwave Wavelengths
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TUDELFT-FEB 9 27ShB. Phys. Rev. Lett. 114, 080503(2015)
TUDELFT-FEB 9 28ShB. Phys. Rev. Lett. 114, 080503(2015)
In a rotating frame with respect to
the interaction picture with respect to the free Hamiltonian
By setting the cavity detunings
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TUDELFT-FEB 9 30
TUDELFT-FEB 9 31ShB. Phys. Rev. Lett. 114, 080503(2015)
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TUDELFT-FEB 9 33
TUDELFT-FEB 9 34
Conclusion I. Quantum Illumination is superior to classical illumination
II. Microwave-optical converter is an interesting device for implementing microwave quantum illumination
III. Microwave quantum illumination shows 3dB improvement compare to standard microwave illumination
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Thank you
S. Pirandola,York
C. Weedbrook,Toronto
S. Guha,Raytheon
D. Vitali,Camerino
J. Shapiro,MIT
ShB. Phys. Rev. Lett. 114, 080503(2015)
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D. DiVincenzoAachen