Schmidt decomposition - How do I find the matrix related to the state?

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SUMMARY

The discussion focuses on the Schmidt decomposition and its application in determining the entanglement of quantum states. The user seeks clarification on representing a state as a matrix to apply Singular Value Decomposition (SVD) and extract Schmidt coefficients. The specific exercise involves mapping from ##\mathbb{C}^2\otimes\mathbb{C}^3## to ##\mathbb{C}^6##, highlighting the presence of 36 unspecified constants, ##\alpha_{i k m}##, which complicates the problem. The user questions the completeness of the problem statement due to the numerous possibilities for these constants.

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  • Understanding of Schmidt decomposition in quantum mechanics
  • Familiarity with Singular Value Decomposition (SVD)
  • Knowledge of tensor products in linear algebra, specifically ##\mathbb{C}^2\otimes\mathbb{C}^3##
  • Basic concepts of quantum entanglement
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  • Study the properties of Schmidt coefficients and their significance in quantum states
  • Learn how to perform Singular Value Decomposition on matrices
  • Explore tensor product operations in quantum mechanics
  • Investigate examples of entangled and separable states in quantum systems
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Quantum physicists, students studying quantum mechanics, and anyone interested in understanding quantum entanglement and matrix representations of quantum states.

Arquimedes
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How to writte the matrix associated to the state, so I can apply the Singular Value Decomposition to that matrix and get the Schmidt coefficients.
Hello, I am currently studying the Schmidt decomposition and how to use it to determine if a state is entangled or not and I can't understand how to write the state as a matrix so I can apply the Singular Value Decomposition and find the Schmidt coefficients. The exercise I am trying to complete is this one:;

problem25.png
 
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A general mapping from ##\mathbb{C}^2\otimes\mathbb{C}^3## to ##\mathbb{C}^6## may be written,

##v_i = \sum_{k=1}^2 \sum_{m=1}^3 \alpha_{i k m} u_k w_m##

there are 36 unspecified constants, ##\alpha_{i k m}##. So there are many possibilities. I think the problem statement is incomplete?
 
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