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06-11
2025
Quantum Journal Club: Operating Spin Echo in the Quantum Regime for an Atomic-En
Abstract: Spin echo is a powerful technique to extend atomic or nuclear coherence times by overcoming the dephasing due to inhomogeneous broadenings. However, there are disputes about the feasibility...
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06-11
2025
Quantum control and quantum information processing with a superconducting cavity
Abstract: We propose an efficient protocol to perform universal quantum control of an oscillator mode (e.g. cavity mode) off-resonantly coupled to an ancillary qubit. With an excitation number trunca...
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06-11
2025
Device-independent entanglement characterizations and beyond
Abstract: Entanglement characterization is a preliminary step in the implementation of many quantum information processing tasks. In this talk, I will describe some recent progress on the possibility...
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06-11
2025
A Crash Course on Quantum Field Theory
Abstract: Outline: 1. Particle -> field -> particles: canonical quantization 2. Path integral formulation 3. What we measure: linear response 4. Perturbation 5. Collective motion as new particle...
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06-11
2025
Quantum Journal Club: Robust control of individual nuclear spins in diamond
Abstract: Isolated nuclear spins provide a promising building block for quantum information science, motivating development of techniques to characterize, control, and detect them in suitable systems...
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06-11
2025
Jaynes-Cummings-Hubbard model and bosonic-particle system using trapped ions
Abstract: Recent advances in quantum technology enabled us to simulate a certain quantum system with another well-controlled system (quantum simulation or analog quantum computation). Systems of trap...