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Observation of the quantum paradox of separation of a single photon from one of its properties
James M. Ashby, Peter D. Schwarz, Maximilian Schlosshauer
We report an experimental realization of the quantum paradox of the separation of a single photon from one of its properties (the so-called "quantum Cheshire cat"). We use a modifi…
Delayed-choice quantum eraser for the undergraduate laboratory
James M. Ashby, Peter D. Schwarz, Maximilian Schlosshauer
In a delayed-choice quantum eraser, interference fringes are obtained by erasing which-way information after the interfering particle has already been irreversibly detected. Follow…
Measuring the quantum state of a single system with minimum state disturbance
Maximilian Schlosshauer
Conventionally, unknown quantum states are characterized using quantum-state tomography based on strong or weak measurements carried out on an ensemble of identically prepared syst…