Application: Quantum Computing
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
Is information physical?
Computers process information. Computer scientist and physicist Rolf Landauer was a proponent of the idea that information is an aspect of the physical ...
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Application: Quantum Data Encryption
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
Can quantum physics be harnessed to create perfectly secure Internet communication?
Yes. In recent decades scientists have learned how to use the quantum nature of light to make ...
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Application: Sensing Gravity with Quantum Interference
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
What is the technology of sensing?
The human body has at least five senses: touch, taste, smell, sight, and hearing. A human sense is any biological process that generates a ...
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Application: Sensing Time, Motion, and Gravity with Quantum Technology
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
What are quantum physics–based sensing technologies?
Quantum physics–based sensing technologies are those that rely on quantum physics principles for their working. If classical ...
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Bell-Tests and the End of Local Realism
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
Can experiments probe the nature of reality?
The year 2015 was a very good year for quantum theory, yet it was not such a good year for ‘classical reality.’ Since the inception of ...
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Celestial Dynamics: what, why, and how
Frank Close
in Eclipses: What Everyone Needs to Know®
Which is more likely, a solar or a lunar eclipse?
Most of us have seen a lunar eclipse, possibly several, whereas solar eclipses seem to occur rarely. In your lifetime, you will ...
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Eclipse Facts and Fictions
Frank Close
in Eclipses: What Everyone Needs to Know®
What is a solar eclipse?
The Moon’s diameter is 400 times smaller than the Sun’s, but the Moon is also 400 times closer to us, so, remarkably, the two bodies appear exactly the ...
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Eclipse Tourism
Frank Close
in Eclipses: What Everyone Needs to Know®
When and where can I see a total lunar eclipse?
To see a total lunar eclipse, simply stay at home. One will come your way within a year or two. Your biggest problem might be having ...
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Eclipse Watching
Frank Close
in Eclipses: What Everyone Needs to Know®
Watching a Partial Eclipse
Which way does the eclipse travel?
Relative to Earth, the Moon and Sun are moving at slightly different speeds, which means the Moon’s shadow ...
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Eclipses and Science
Frank Close
in Eclipses: What Everyone Needs to Know®
What science has come from eclipses?
The philosophers of Ancient Greece used eclipses and occultation to build the first conception of a three-dimensional universe and overthrow ...
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Eclipses in History and Myth
Frank Close
in Eclipses: What Everyone Needs to Know®
What links eclipses, Romulus, and the foundation of Rome?
Classical literature has associated Romulus’s birth, his foundation of Rome, and his death, with eclipses. The most common ...
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Eclipses in Literature and Art
Frank Close
in Eclipses: What Everyone Needs to Know®
What examples of eclipses occur in literature?
There are many examples of eclipses in literature. The first mention of an eclipse in classical literature is a description in ...
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Energy Quantization and Atoms
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
What is energy quantization in quantum mechanics?
We now return to a more historical progression and discuss how Schrödinger’s equation describes the properties and behaviors of ...
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Future Directions and Remaining Questions in Quantum Science
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
What is needed to make further progress?
To make further progress, quantum scientists need to understand better the nonintuitive aspects of quantum phenomena and their description ...
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Milestones and a Fork in the Road
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
What aspects of quantum physics have we seen so far, and what topics should we discuss next?
We find ourselves at a fork in the road on the way to understanding quantum physics. ...
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Quantum Behavior and its Description
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
How do quantum objects behave in the absence of measurement?
In the previous chapters we discussed the origins of three quantum principles: fundamental randomness, quantum states, ...
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Quantum Entanglement and Teleportation
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
What is quantum entanglement?
Quantum entanglement is a characteristic of special quantum states describing two or more quantum entities, such as photons or electrons. It ...
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Quantum Fields and Their Excitations
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
What are classical particles and fields?
In a classical physics description of Nature, all elementary entities are considered to be either particles or fields. In this theory, a
...
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Quantum Measurement and its Consequences
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
What is measurement in classical physics?
In the classical realm of human-scale objects such as motorcycles and buildings, it’s pretty clear what we mean by ‘measuring an object.’ ...
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Quantum Physics
Michael G. Raymer
in Quantum Physics: What Everyone Needs to Know®
What is quantum physics?
Quantum physics is the study of matter and energy—the basic constituents of the physical world—in the ‘quantum realm.’ The quantum realm encompasses those ...
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