Is Schrödinger's Equation Linear?

In summary, Schrodinger's equation is a fundamental equation in quantum mechanics that describes the time evolution of a quantum state. It is used to calculate the probabilities of different quantum states and their evolution over time, and has numerous real-world applications, including in the development of materials and technologies, medical imaging, and quantum computing. While it is generally too complex to be solved exactly, scientists use approximations and numerical methods to make predictions about the behavior of quantum systems.
  • #1
neelakash
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1

Homework Statement



I am to show that Schrodinger's equation is linear.

Homework Equations





The Attempt at a Solution



I think it is sufficient to show that if psi1 and psi 2 are the solutions of Schrodinger equation, then any linear combination of them, say (a psi1+b psi 2) is also a soluton to that equation.

Am I missing something?
 
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  • #2
No, nothing. If you show that then the SE is linear.
 

FAQ: Is Schrödinger's Equation Linear?

What is Schrodinger's equation?

Schrodinger's equation is a fundamental equation in quantum mechanics that describes the time evolution of a quantum state. It is named after Austrian physicist Erwin Schrodinger and is a central concept in understanding the behavior of particles on a microscopic scale.

What does it mean for Schrodinger's equation to be linear?

A linear equation is one in which the output varies in direct proportion to the input. In the context of Schrodinger's equation, this means that the wave function, which describes the quantum state of a particle, changes in a linear and predictable manner over time.

How is Schrodinger's equation used in scientific research?

Schrodinger's equation is used to calculate the probabilities of different quantum states and their evolution over time. It is used in a wide range of fields, including quantum mechanics, chemistry, and materials science, to understand and predict the behavior of particles and systems on a microscopic level.

Can Schrodinger's equation be solved exactly?

In most cases, Schrodinger's equation cannot be solved exactly due to its complexity. Instead, scientists use approximations and numerical methods to solve the equation and make predictions about the behavior of quantum systems. However, in certain simple systems, such as the hydrogen atom, an exact solution can be found.

What are some real-world applications of Schrodinger's equation?

Schrodinger's equation has numerous practical applications, including in the development of new materials and technologies, such as transistors and lasers. It is also used in medical imaging techniques, such as MRI, and in the study of biological systems, such as protein folding. Additionally, it has played a crucial role in the development of quantum computing and cryptography.

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