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Questions tagged [foundations]

Quantum foundations is the study of foundational questions related to Quantum mechanics and Quantum information theory. Some problems studied by researchers of quantum foundations are for instance the issue of the correct interpretation of quantum mechanics, the EPR paradox and the related area of quantum nonlocality and contextuality (Wikipedia). QUESTIONS RELATED TO INTERPRETATIONS OF QUANTUM THEORY SHOULD ALSO USE THIS TAG.

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Are correlations stronger than those allowed by quantum mechanics possible?

We know how a quantum correlation setup can help us with a better probability of winning games like the CHSH. But what is the upper bound that physics can allow? Is it the quantum correlation setup? ...
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What quantum gate is XNOR equivalent to?

The standard way to implement a reversible XOR gate is by means of a controlled-NOT gate or CNOT; this is the "standard quantum XOR operation". Physics.Stackexchange Is there a "standard quantum XNOR ...
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What exactly are Quantum XOR Games?

I have done some research & found a few different papers that discuss xor games (classic & quantum). I am curious if someone could give a concise introductory explanation as to what exactly ...
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Equation for Quantum Gyroscopes

A quantum gyroscope is a very sensitive device to measure angular rotation based on quantum mechanical principles. The first of these has been built by Richard Packard and his colleagues at the ...
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What is the use of Categorical quantum mechanics?

I recently noticed that Oxford's computer science department has started offering a grad course on Categorical quantum mechanics. Apparently they say that it is relevant for the study of quantum ...