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quant-ph2003
On Quantum Operations as Quantum States
Pablo Arrighi, Christophe Patricot
We formalize the correspondence between quantum states and quantum operations isometrically, and harness its consequences. This correspondence was already implicit in the various p…
quant-ph2003
The Conal representation of Quantum States and Non Trace-Preserving Quantum Operations
Pablo Arrighi, Christophe Patricot
We represent generalized density matrices of a -complex dimensional quantum system as a subcone of a real pointed cone of revolution in , or indeed a Minkowski…
quant-ph2002
A Note on the correspondence between Qubit Quantum Operations and Special Relativity
Pablo Arrighi, Christophe Patricot
We exploit a well-known isomorphism between complex hermitian matrices and , which yields a convenient real vector representation of qubit states. Because…