Quantum Mechanics Practical Scenarios

In summary, the conversation discusses the practical usage of quantum physics in the real world and the lack of examples in textbooks. It is mentioned that quantum mechanics is applicable in areas such as solid state physics, electronics, and computational chemistry. The concept of quantum computation is also mentioned as an exciting and practical application of quantum mechanics.
  • #1
I want to pursue my Masters in Research in the field of Quantum physics. I would like to understand the practical usage of quantum physics for eg: where it is used in real world and if any books to refer regarding the practical usage.

I have good collection of books on quantum physics which never explain the real world scenarios. Any assistance would be appreciated.

cheers! VP
 
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  • #2
What do you mean by real world?

Anything around us is governed by the laws of quantum theory, at least there is no known case where quantum theory is invalid. The very fact that matter around us is stable, given the atomistic structure of it, is a quantum phenomenon. The computer or better said semiconductors, transistors, integrated circuits and all that it is based on, I'm typing this posting on is an application of quantum theory and so on...
 
  • #3
vanhees71,
What I meant by Real world is , there are many theories ,laws and principles are there in quantum mechanics .whenever I read any topic for example Linear harmonic oscillator , there equations mentioned for which some solutions are given .I could understand the equations and solutions given .But it always making me incomplete in understanding the topic without knowing where to apply this? which real world entity is applied to the topic.No textbooks are supporting such examples.so I really wants an advice how how to apply the theories given .any advice would be appreciated.

cheers !
 
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  • #4
OP, quantum physics is daily working material in solid state physics and theoretical chemistry. For example, everything "electronic structure" is inherently quantum mechanic.

To give you an example, in computational chemistry molecular geometries and properties are routinely calculated using either Kohn-Sham density functional methods or wave function methods (both being quantum mechanical approaches). The harmonic oscillator approximations you mentioned are then often employed (for computational cost reasons) to estimate statistical partition functions in order to calculate finite-temperature properties like enthalpies, entropies, etc.
 
  • #5
In case the quantum mechanics is applying in semiconductors ,transistors ,molecular geometries , can I say like this..."quantum mechanics is necessarily to be understand to study solid state physics and electronics."
 

1. What is quantum mechanics and why is it important?

Quantum mechanics is a branch of physics that studies the behavior of matter and energy at a very small scale, such as atoms and subatomic particles. It is important because it provides a fundamental understanding of the universe and helps explain phenomena that classical mechanics cannot.

2. How is quantum mechanics applied in practical scenarios?

Quantum mechanics has many practical applications, including in the development of technology such as transistors and lasers, cryptography, and medical imaging. It also plays a crucial role in understanding chemical reactions and the behavior of materials at a microscopic level.

3. What are some common misconceptions about quantum mechanics?

Some common misconceptions about quantum mechanics include the idea that it only applies to the very small scale, that it is mysterious and cannot be understood, and that it allows for random or unpredictable events. In reality, quantum mechanics is a well-established and highly accurate theory that can be explained and applied to a wide range of phenomena.

4. How does quantum mechanics impact our daily lives?

Quantum mechanics has a significant impact on our daily lives, even if we may not realize it. Many modern technologies, such as computers, GPS, and smartphones, rely on principles of quantum mechanics. Additionally, the behavior of matter at a microscopic level determines the properties of many materials we use in our daily lives.

5. Are there any practical limitations to quantum mechanics?

While quantum mechanics is a highly accurate and successful theory, there are some practical limitations to its application. For example, the principles of quantum mechanics cannot be applied to large-scale objects, and there are still many unanswered questions and areas of research within the field.

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