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- HUN-REN Wigner Research Centre for PhysicsHU158 papers
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Showing 2006 · quant-phShow all
2 papers · 2 filters
quant-ph2006★ 61 cited
On the geometry of four qubit invariants
Péter Lévay
The geometry of four-qubit entanglement is investigated. We replace some of the polynomial invariants for four-qubits introduced recently by new ones of direct geometrical meaning.…
quant-ph2006★ 13 cited
State tomography for two qubits using reduced densities
D. Petz, K. M. Hangos, A. Szanto +1
The optimal state determination (or tomography) is studied for a composite system of two qubits when measurements can be performed on one of the qubits and interactions of the two…