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Entanglement Enable...
Entanglement Enabled Intensity Interferometry of different wavelengths of light
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- Cotler, Jordan (author)
- Stanford Univ, Stanford Phys Dept, Stanford, CA 94305 USA.
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- Wilczek, Frank (author)
- Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA.;Shanghai Jiao Tong Univ, TD Lee Inst, Shanghai 200240, Peoples R China.;Shanghai Jiao Tong Univ, Wilczek Quantum Ctr, Shanghai 200240, Peoples R China.;Arizona State Univ, Dept Phys, Tempe, AZ 25287 USA.;Arizona State Univ, Origins Project, Tempe, AZ 25287 USA.;Stockholm Univ, Dept Phys, AlbaNova, S-10691 Stockholm, Sweden.;Stockholm Univ, Roslagstullsbacken 23, S-10691 Stockholm, Sweden.,Fysikum,Nordiska institutet för teoretisk fysik (Nordita),MIT, USA; Shanghai Jiao Tong University, China; Arizona State University, USA
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- Borish, Victoria (author)
- Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA.
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Stanford Univ, Stanford Phys Dept, Stanford, CA 94305 USA Nordic Institute for Theoretical Physics NORDITA (creator_code:org_t)
- Elsevier BV, 2021
- 2021
- English.
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In: Annals of Physics. - : Elsevier BV. - 0003-4916 .- 1096-035X. ; 424
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Abstract
Subject headings
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- We propose methods to perform intensity interferometry of photons having two different wavelengths. Distinguishable particles typically cannot interfere with each other, but we overcome that obstacle by processing the particles via entanglement and projection so that they lead to the same final state at the detection apparatus. Specifically, we discuss how quasi-phase-matched nonlinear crystals can be used to convert a quantum superposition of light of different wavelengths onto a common wavelength, while preserving the phase information essential for their meaningful interference. We thereby gain access to a host of new observables, which can probe subtle frequency correlations and entanglement. Further, we generalize the van Cittert-Zernike formula for the intensity interferometry of extended sources, demonstrate how our proposal supports enhanced resolution of sources with different spectral character, and suggest potential applications.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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