A Rudimentary Quantum Compiler(2cnd Ed.)

Details A Rudimentary Quantum Compiler(2cnd Ed.) A Rudimentary Quantum Compiler(2cnd Ed.)

1999-02-18

arxiv.org/abs/quant-ph/9902062v1

Physics

Quantum Physics

1 LaTeX file(49 pages), 11 eps files. This paper comprises two of my previous papers entitled "A Rudimentary Quantum Compiler"

Scientific paper

We present a new algorithm for reducing an arbitrary unitary matrix U into a sequence of elementary operations (operations such as controlled-nots and qubit rotations). Such a sequence of operations can be used to manipulate an array of quantum bits (i.e., a quantum computer). Our algorithm applies recursively a mathematical technique called the CS Decomposition to build a binary tree of matrices whose product, in some order, equals the original matrix U. We show that the Fast Fourier Transform (FFT) algorithm is a special case of our algorithm. We report on a C++ program called "Qubiter" that implements the ideas of this paper. Qubiter(PATENT PENDING) source code is publicly available.

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