Chinese Journal of Quantum Electronics
Construction method of tight frame bsaed on joint quantum measurement
Lin Ni
Abstract
To construct a tight frame for a given vector,joint quantum measurement of teleportation was investigated,and a construction method of tight frame was proposed.The generalized construction method of tight frame is based on joint quantum measurement.Firstly,arrange the given vector into a coefficient matrix,then obtain its left unitary,right unitary and singular value matrix by singular value decomposition. Secondly,find a base including a column whose coefficient matrix is just the non-zero part of the singular value matrix.At the end,arrage the rest colomns of the base into non-zero part of the singular value matrix, then get the rest tight frame columns by singular value reconstruction.