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Sideband Cooling of a Trapped Ion in Strong Sideband Coupling Regime
Shuo Zhang, Zhuo-Peng Huang, Tian-Ci Tian +4
Conventional theoretical studies on the ground-state laser cooling of a trapped ion have mostly focused on the weak sideband coupling (WSC) regime, where the cooling rate is invers…
Strong quantum computational advantage using a superconducting quantum processor
Yulin Wu, Wan-Su Bao, Sirui Cao +51
Scaling up to a large number of qubits with high-precision control is essential in the demonstrations of quantum computational advantage to exponentially outpace the classical hard…
Steady state phonon occupation of EIT cooling: higher order calculations
Shuo Zhang, Tian-Ci Tian, Zheng-Yang Wu +5
Electromagnetically induced transparency (EIT) cooling has established itself as one of the most widely used cooling schemes for trapped ions during the past twenty years. Compared…
Sending or not sending twin-field quantum key distribution with distinguishable decoy states
Yi-Fei Lu, Mu-Sheng Jiang, Yang Wang +5
Twin-field quantum key distribution (TF-QKD) and its variants can overcome the fundamental rate-distance limit of QKD which has been demonstrated in the laboratory and field while…
Fast Cooling of Trapped Ion in Strong Sideband Coupling Regime
Shuo Zhang, Jian-Qi Zhang, Wei Wu +2
Trapped ion in the Lamb-Dicke regime with the Lamb-Dicke parameter can be cooled down to its motional ground state using sideband cooling. Standard sideband cooling works i…
Quantum search for unknown number of target items hybridizing the fixed-point method with the trail-and-error method
Tan Li, Shuo Zhang, Xiang-Qun Fu +4
For the unsorted database quantum search with the unknown fraction of target items, there are mainly two kinds of methods, i.e., fixed-point or trail-and-error. (i) In terms of…