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Optimal Perfect Distinguishability between Unitaries and Quantum Operations
Optimal Perfect Distinguishability Unitaries Quantum Operations
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2010/11/4
We study optimal perfect distinguishability between a unitary and a general quantum operation. In 2-dimensional case we provide a simple sufficient and necessary condition for sequential perfect disti...
Secure two-party quantum evaluation of unitaries against specious adversaries
Secure two-party quantum evaluation unitaries specious adversaries
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2010/10/19
We show that any two-party quantum computation, specified by a unitary which simultaneously acts on the registers of both parties,can be securely implemented against a quantum version of classical sem...
Random unitaries in non-commutative tori, and an asymptotic model for q-circular systems
non-commutative tori asymptotic model q-circular systems
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2010/10/29
We consider the concept of a q-circular system, which is a deformation of the circular system from free probability, taking place in the framework of the so-called 'q-commutation relations'. We show ...
An Algebraic Duality Theory for Multiplicative Unitaries
Algebraic Duality Theory Multiplicative Unitaries
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2010/10/29
Multiplicative Unitaries are described in terms of a pair of commuting shifts of relative depth two. They can be generated from ambidextrous Hilbert spaces in a tensor C*-category. The algebraic anal...