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redhedkangaro
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is the vacuum the same as a quantum vacuum? Minor question but just wondering.
I think you seem to be using terms in ways that aren't quite in line with standard usage. Until you get some of the standard relationships between concepts a little more straight in your head, you will get answers to the questions that people think you might have asked, or that they think you ought to have asked. Keep at it! You probably need to do some more reading in parallel with asking questions on Physics Forums. When I get confused, I often try to read a different book on QFT, because it's often quite illuminating when you notice differences between presentations.redhedkangaro said:i guess another question I would ask is what is the difference between the quantum field and the vacuum?
A vacuum is a space that is completely empty of any matter or particles.
A quantum vacuum, also known as a zero-point field, is the lowest possible energy state of a quantum mechanical system. It is not completely empty, as it contains small amounts of energy and particles that constantly fluctuate in and out of existence.
No, the vacuum and the quantum vacuum are not the same. While both refer to empty space, the quantum vacuum contains energy and particles that the vacuum does not.
In quantum mechanics, particles are described as waves that exist in a field of energy. This energy field is the quantum vacuum, which is constantly fluctuating and interacting with particles in the universe.
The quantum vacuum plays a crucial role in many phenomena, such as the Casimir effect and the Lamb shift, and is also important in understanding the behavior of particles on a quantum level. It is also being studied for potential applications in technology, such as quantum computing.