Definition of action of quantum hamiltonian, two state system

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SUMMARY

The discussion centers on the definition of the action of the Hamiltonian operator 'H' on a two-state quantum system represented by orthonormal states |1> and |2>. The Hamiltonian is specified as a 2x2 Hermitian matrix, which is crucial for understanding quantum mechanics. The term 'action' refers to how the Hamiltonian transforms or evolves these states within the framework of quantum mechanics. Clarification is sought on the mathematical implications of this action, emphasizing the importance of the Hamiltonian in determining the system's dynamics.

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  • Understanding of quantum mechanics principles, particularly state vectors and operators.
  • Familiarity with Hermitian matrices and their properties in quantum systems.
  • Knowledge of linear algebra concepts, specifically matrix multiplication and eigenvalues.
  • Basic grasp of the role of the Hamiltonian in quantum dynamics.
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  • Study the mathematical representation of Hamiltonians in quantum mechanics.
  • Learn about the time evolution of quantum states using the Schrödinger equation.
  • Explore the concept of eigenstates and eigenvalues in relation to Hermitian operators.
  • Investigate examples of two-state systems, such as spin-1/2 particles, to see practical applications of Hamiltonians.
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theidiot
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Homework Statement



Consider a two-state system. We denote the two orthonormal states by |1>and |2>. The Hamiltonian of the system is given by a 2 × 2 matrix:
[omitted in this post, has 4 entries of course, not very interesting]
Write the action of H on the states |1> and |2>.

2. The attempt at a solution

Well, I don't know what is meant by action here! No doubt it's simple but I need to know what 'action' means in this context. Thanks for assistance!
 
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Just to clarify, 'H' is the Hamiltonian and is represented by a 2x2 (hermitian) matrix. I have not explicitly written out the matrix in these posts because there is no need. No reply yet, so just thought to clarify that the 'H' referred to is the matrix of the Hamiltonian. What is meant by its 'action' on the two orthonormal states of the two state system?
 

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