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Virtual Quantum Subsystems

Paolo Zanardi
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Abstract

The physical resources available to access and manipulate the degrees of freedom of a quantum system define the set $\cal A$ of operationally relevant observables. The algebraic structure of $\cal A$ selects a preferred tensor product structure i.e., a partition into subsystems. The notion of compoundness for quantum system is accordingly relativized. Universal control over virtual subsystems can be achieved by using quantum noncommutative holonomies

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Paolo Zanardi. 2001-03-07. Virtual Quantum Subsystems. https://doi.org/10.1103/physrevlett.87.077901

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