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11-08
2013
Continuous-Variable Quantum Cryptography: Current Status and Future Directions
Abstract: Quantum cryptography allows two people to communicate in absolute secrecy using unbreakable codes. In this talk I introduce the basics of the continuous-variable version of quantum cryptogr...
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06-08
2022
Quantum variantional learning for quantum error-correcting codes
Abstract: 为了实现大规模容错量子计算，我们必须有探测和纠正噪声的手段——量子纠错。在过去的二十年里，人们构造了一系列不同的量子纠错码，但其中的绝大部分并不适用于近期量子设备。在这个报告里，我们介绍一个...
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05-08
2024
Quantum applications based on density matrix vectorization: a polynomial-time quantum algorithm for some hard ground state problems and an unconditionally decoherence-free quantum error mitigation method
Abstract: In this talk, we will give two quantum applications based on density matrix vectorization. Vectorizing density matrices has been a useful mathematical trick for simplifying many concepts in...
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03-10
2016
Quantum Journal Club：Generation of Ensembles of Individually Resolvable Nitrogen
Abstract: A central challenge in developing magnetically coupled quantum registers in diamond is the fabrication of nitrogen vacancy (NV) centers with localization below ∼20 nm to enable fast dipola...
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07-12
2024
High fidelity hybrid quantum computing platform based on single quanta of sound
Abstract: Entanglement and superposition are fundamental properties of quantum-mechanical states, with no classical counterparts. It is well-established that elementary particles, such as electrons a...
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09-30
2015
Quantum Journal Club: Resolving remote nuclear spins in a noisy bath by dynamica
Abstract: We experimentally resolve several weakly coupled nuclear spins in diamond using a series of dynamical decoupling controls. Some nuclear spin signals, hidden by decoherence under ordinary dy...