The phrase
"quantum systems" refers to systems that operate using the principles of quantum mechanics. It is a branch of physics that deals with matter and energy at very tiny scales, such as atoms and subatomic particles. In these systems, the behavior of particles is described by probabilities rather than definite outcomes, which introduces a level of uncertainty and allows for phenomena like superposition and entanglement.
Quantum systems are essential for understanding and developing technologies like quantum computers and quantum cryptography.
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