SKU: 3070929020

Light and Vacuum

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Description

Light and VacuumLight and Vacuum presents a synthesis of selected fundamental topics of electromagnetic wave theory and quantum electrodynamics (QED) and analyzes the main theoretical difficulties encountered to ensure a coherent mathematical description of the simultaneous wave particle nature of light, put in evidence by the experiments. The notion and the role of the quantum vacuum, strongly related to light, are extensively investigated. Classical electrodynamics

 

Light and Vacuum presents a synthesis of selected fundamental topics of electromagnetic wave theory and quantum electrodynamics (QED) and analyzes the main theoretical difficulties encountered to ensure a coherent mathematical description of the simultaneous wave-particle nature of light, put in evidence by the experiments. The notion and the role of the quantum vacuum, strongly related to light, are extensively investigated.

Classical electrodynamics issued from Maxwell's equations revealed the necessity of introducing the notion of volume for an electromagnetic wave to stand entailing precise values of cut-off wavelengths to account for the shape and dimensions of the surrounding space. Conversely, in QED, light is considered to be composed of point particles disregarding the conceptual question on how the frequency of oscillating electric and magnetic fields may be attributed to a point particle.

To conciliate these concepts, the book provides a comprehensive overview of the author's work, including innovative contributions on the quantization of the vector potential amplitude at a single photon state, the non-local simultaneous wave-particle mathematical representation of the photon and finally the quantum vacuum. The purpose of the advanced elaborations is to raise questions, give hints and answers, and finally aspire for further theoretical and experimental studies in order to improve our knowledge and understanding on the real essence of Light and Vacuum.

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SKU: 3070929020

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Michelle Zaugg
Belleville, US
★★★★★ 5
My favorite.
Size: 6.76 Fl Oz (Pack of 1), Style: Lotion (SPF 50)
I love this stuff. It's non-comedogenic, so it doesn't break me out. I've noticed a considerable difference in my acne scars after using it for a couple weeks. It is a little greasy and there's a very slight white cast, but I don't mind because I just let it dry and then put some powder over the top. Plus, the cast is easy to rub in and makes my skin tone look more balanced (I am white, though). Hope this helps!
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Reviewed in the United States on May 7, 2026
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Tln_tinkering
New York, US
★★★★★ 4
Good sunblock
Size: 6.76 Fl Oz (Pack of 1), Style: Lotion (SPF 50)
This is my go-to sunblock reconnect by my dermatologist. It has a good skin feel, and seems to do the job required.
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Reviewed in the United States on January 12, 2026
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thomas
Dallas, US
★★★★★ 5
Perfect protection for daily use
Size: 6.76 Fl Oz (Pack of 1), Style: Lotion (SPF 50)
This is my go-to sunscreen for my daily use. I have stuck to a strict skin care routine and at the end, it’s extremely important to have a sunscreen to seal the deal. And this does just that. It doesn’t leave that nasty white streaks from the sunscreen and goes on very nicely. Out of my months of using this I have never been uncomfortable with it and the smell is very refreshing unlike other brands of sunscreen. Most importantly, this doesn’t feel greasy or overly slick. Perfect balance.
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Reviewed in the United States on May 20, 2026
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Kelli
Lexington, US
★★★★★ 5
Great
Size: 6.76 Fl Oz (Pack of 1), Style: Lotion (SPF 50)
While it is a bit thick, that can be great for sweaty summer activities (also it's purpose)! It does not leave a white cast (on me, though I am pale, I have experienced this with other sunscreens) and smells okay, not great but like a sunscreen would be expected to. It's not a super strong scent and does not burn my eyes. Sits good under my makeup as well.
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Reviewed in the United States on May 4, 2026
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Zuppr
Dallas, US
★★★★★ 5
Great protection and not greasy.
Size: 6.76 Fl Oz (Pack of 1), Style: Lotion (SPF 50)
This sunscreen is great. It is not greasy and protects for a long time. I have had a few battles with skin cancer, but feel confident that this stuff will protect me. Yesterday was hot and sunny and my skin was still protected after 4 hours on the golf course.
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Reviewed in the United States on May 20, 2026

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