ar X iv : 0 70 4 . 04 95 v 2 [ qu an t - ph ] 1 7 A pr 2 00 7 The Veldkamp Space of Two - Qubits
نویسندگان
چکیده
Given a remarkable representation of the generalized Pauli operators of two-qubits in terms of the points of the generalized quadrangle of order two, W (2), it is shown that specific subsets of these operators can also be associated with the points and lines of the four-dimensional projective space over the Galois field with two elements — the so-called Veldkamp space of W (2). An intriguing novelty is the recognition of (uniand tri-centric) triads and specific pentads of the Pauli operators in addition to the “classical” subsets answering to geometric hyperplanes of W (2). MSC Codes: 51Exx, 81R99 PACS Numbers: 02.10.Ox, 02.40.Dr, 03.65.Ca
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ar X iv : 0 70 4 . 04 95 v 1 [ qu an t - ph ] 4 A pr 2 00 7 The Veldkamp Space of Two - Qubits
Given a remarkable representation of the generalized Pauli operators of two-qubits in terms of the points of the generalized quadrangle of order two, W (2), it is shown that specific subsets of these operators can also be associated with the points and lines of the four-dimensional projective space over the Galois field with two elements — the so-called Veldkamp space of W (2). An intriguing no...
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