Monitoring the Energy of a Cavity by Observing the Emission of a Repeatedly Excited Qubit

The number of excitations in a large quantum system (harmonic oscillator or qudit) can be measured in a quantum nondemolition manner using a dispersively coupled qubit. It typically requires a series of qubit pulses that encode various binary questions about the photon number. Recently, a method bas...

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Veröffentlicht in:	Physical review letters 2024-10, Vol.133 (15), p.153602, Article 153602
Hauptverfasser:	Hutin, H, Essig, A, Assouly, R, Rouchon, P, Bienfait, A, Huard, B
Format:	Artikel
Sprache:	eng
Schlagworte:	Physics Quantum Physics
Online-Zugang:	Volltext
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