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In this report we present a framework for implementing arbitrary $n$-outcomequantum measurement as a sequence of two-outcome measurements requiring onlysingle ancillary qubit. Our procedure is the same as one presented in [Phys.Rev. A 77, 052104 (2008)] but in addition offers particular construction for atwo-outcome partial measurements. We exemplify this framework on theunambiguous state discrimination. In the simplest case it gives the sameconstruction as is known, if we opt for performing conclusiveness measurementfirst. However, it also offers possibility of performing measurement for one ofthe state outcomes, which shows flexibility of presented framework.

General Measurements with Limited Resources and Their Application to Quantum Unambiguous State Discrimination