Reversible arithmetic coding for quantum data compression

摘要

A method and structure for encoding/decoding a block of quantum data including removing trailing eigenstates from the block that have eigenvalues below a predetermined limit to retain leading eigenstates that have eigenvalues above the predetermined limit, encoding the remaining quantum bits retained in the block after the removing. The remaining quantum bits can also include a linear superposition of the leading eigenstates. The predetermined limit is based upon a density matrix of the block. This method of encoding produces encoded quantum bits and can further include decoding the encoded quantum bits by reversing the encoding. The decoding reproduces the remaining quantum bits and the encoding completely erases the remaining quantum bits. Further, the invention can include outputting only an encoded or decoded result.