Microwave Quantum Illumination(Quantum...

Microwave Quantum Illumination(Quantum Sensor)

Shabir Barzanjeh

Inst i tute of sc ience and technology ( IST) Austr ia

IPM(29.12.2016)

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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

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)()(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