Undergrad What is an Eigenstate? Simple Explanation

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An eigenstate is a quantum-mechanical state associated with an eigenvalue of a wave equation. It represents a non-zero state that, when an operator like the Hamiltonian or Schrödinger Equation is applied, yields the state itself multiplied by a constant factor, referred to as the eigenvalue. Understanding eigenstates requires some background in linear algebra, particularly concepts of eigenvalues and eigenvectors. Resources are available for further clarification on the topic. Eigenstates play a crucial role in quantum mechanics and wave functions.
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what is eigenstate?
I found this:
Eigenstate: a quantum-mechanical state corresponding to an eigenvalue of a wave equation.

would you please some one explain simply?

Thanks
 
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Hard to explain without some knowledge of your background. Have you studied linear algebra much. Do you know about eigenvalues and eigenvectors in the math context? That's pretty much the same thing.
 
Given an operator, (for example, the Hamiltonian, or the Schrödinger Equation) an eigenstate is a (non-zero) state that, when applied on the operator, results of itself multiplied by some constant factor (that is known as the eigenvalue).
 
Gaussian97 said:
Given an operator, (for example, the Hamiltonian, or the Schrödinger Equation) an eigenstate is a (non-zero) state that, when applied on the operator, results of itself multiplied by some constant factor (that is known as the eigenvalue).
thank you so much
 
Time reversal invariant Hamiltonians must satisfy ##[H,\Theta]=0## where ##\Theta## is time reversal operator. However, in some texts (for example see Many-body Quantum Theory in Condensed Matter Physics an introduction, HENRIK BRUUS and KARSTEN FLENSBERG, Corrected version: 14 January 2016, section 7.1.4) the time reversal invariant condition is introduced as ##H=H^*##. How these two conditions are identical?

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