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Using pseudorandomness in quantum experiments instead of true randomness can lead to observable consequences. This impacts Bell-like experiments and the creation of mixed states, requiring limitations on computational resources for proper observation of nonlocality.

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Area of Science:

  • Quantum physics
  • Quantum information theory

Background:

  • Quantum experiments often rely on randomness for theoretical validity.
  • Pseudorandomness is frequently used as a substitute for true randomness in these setups.

Purpose of the Study:

  • To investigate the observable consequences of using pseudorandomness instead of true randomness in quantum physics.
  • To identify new loopholes in Bell-like experiments and analyze state preparation methods.

Main Methods:

  • Analysis of Bell-like experiments with pseudorandom measurement choices.
  • Investigation of state preparation using pseudorandomness in quantum systems.

Main Results:

  • A new loophole in Bell-like experiments is identified, requiring limitations on computational resources for observing nonlocality when pseudorandomness is used.
  • It is demonstrated that pseudorandomness is insufficient for generating mixed states by computationally selecting pure states from a basis.

Conclusions:

  • The use of pseudorandomness in quantum experiments has significant, observable consequences.
  • Careful consideration of randomness sources and computational limitations is crucial for valid quantum experiments and interpretations.