What is the quantum computational complexity theory?

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What is the quantum computational complexity theory?

Quantum computational complexity theory is a branch of computer science that studies the resources required to solve computational problems using quantum computers. It aims to understand the efficiency and limitations of quantum algorithms and quantify the computational complexity of solving problems on quantum computers. This theory provides a framework for analyzing the time, space, and communication requirements of quantum algorithms and helps classify problems based on their difficulty in the quantum computing paradigm.