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Treball de fi de grauData de publicació
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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/231436
Quantum gates with Rydberg atoms
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In the context of quantum computing based on neutral atoms we study the implementation of quantum gates, the fundamental logic operations of quantum circuits. In particular, we focus on the strong, long-range interactions provided by Rydberg states. First, single-qubit operations are modelled using Rabi oscillations and Maxwell-Bloch equations, characterizing decoherence and error sources. Next, we introduce the Rydberg blockade mechanism to simulate conditional quantum dynamics, specifically implementing a two-qubit controlled-NOT (CNOT) gate. By introducing an error model accounting for spontaneous emission and pulse fluctuations, we achieve a simulated gate fidelity of 95.46%, which is then optimized to 96.15% by tuning the parameters.
Finally, these operations are integrated into a superdense coding circuit to demonstrate a practical quantum communication protocol.
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Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2026, Tutors: Antonio Rubio Abadal, Bruno Juliá-Díaz
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MONTANER CARBÓ, Mariona. Quantum gates with Rydberg atoms. [consulted: 17 of September of 2026]. Available at: https://hdl.handle.net/2445/231436