%0 Journal Article %T Can Hidden Variables Theories Meet Quantum Computation? %A Koji Nagata %A Tadao Nakamura %J Open Access Library Journal %V 2 %N 8 %P 1-12 %@ 2333-9721 %D 2015 %I Open Access Library %R 10.4236/oalib.1101804 %X We study the relation between hidden variables theories and quantum computation. We discuss an inconsistency between a hidden variables theory and controllability of quantum computation. To derive the inconsistency, we use the maximum value of the square of an expected value. We propose a solution of the problem by using new hidden variables theory. Also we discuss an inconsistency between hidden variables theories and the double-slit experiment as the most basic experiment in quantum mechanics. This experiment can be an easy detector to Pauli observable. We cannot accept hidden variables theories to simulate the double-slit experiment in a specific case. Hidden variables theories may not depicture quantum detector. This is a quantum measurement theoretical profound problem. %K Quantum Computer %K Quantum Information Theory %K Quantum Non Locality %U http://www.oalib.com/paper/3149247