Quantum physics and quantum mechanics

In summary, the conversation discussed the topic of quantum mechanics, a subfield of quantum physics. The speaker was having trouble finding a recent and accurate article, so they asked for a basic explanation and more details. Another person clarified that the two terms are often used interchangeably, but the word "mechanics" may suggest a focus on Quantum Field Theory. They recommended starting with two books to learn about plain QM.
  • #1
Luke77
42
0
Hey everyone,

I know that quantum mechanics is a sub topic of quantum physics and is the most general also, but I'm having trouble finding an article that is recent, detailed, and accurate. So if you guys could explain the basics and go into detail when you feel necessary. Thanks.
 
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  • #2
i thought they were different names for the same thing? :confused:
 
  • #3
tiny-tim said:
i thought they were different names for the same thing? :confused:

Quantum mechanics is one field in quantum physics.
 
  • #4
Last edited:
  • #5
Thanks Bill!
 

FAQ: Quantum physics and quantum mechanics

What is quantum physics and quantum mechanics?

Quantum physics and quantum mechanics are branches of physics that study the behavior of matter and energy at the atomic and subatomic level. They describe the principles and laws that govern the behavior of particles such as atoms, electrons, and photons.

What is the difference between classical physics and quantum physics?

Classical physics deals with the behavior of macroscopic objects, while quantum physics focuses on the behavior of particles at the atomic and subatomic level. Classical physics follows deterministic laws, while quantum physics follows probabilistic laws. Additionally, quantum physics allows for phenomena such as superposition and entanglement, which do not exist in classical physics.

What is the uncertainty principle in quantum mechanics?

The uncertainty principle, also known as Heisenberg's uncertainty principle, states that it is impossible to know both the position and momentum of a particle with absolute certainty. This is due to the wave-particle duality of quantum objects, which means that the more precisely we know the position of a particle, the less we know about its momentum, and vice versa.

What is quantum entanglement?

Quantum entanglement is a phenomenon in which two or more particles become connected in such a way that the state of one particle is dependent on the state of the other, even when the particles are separated by a large distance. This phenomenon defies classical physics and has been observed in experiments, but its exact mechanism is still not fully understood.

How is quantum physics applied in technology?

Quantum physics has led to numerous technological advancements, particularly in the field of computing. Quantum computers use the principles of quantum mechanics to perform calculations much faster than classical computers. Quantum cryptography uses quantum mechanics to create secure communication channels. Other applications include quantum sensors, quantum imaging, and quantum metrology.

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