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17 papers · 2 filters
Non-Abelian quantum geometric tensor in degenerate topological semimetals
Hai-Tao Ding, Chang-Xiao Zhang, Jing-Xin Liu +3
The quantum geometric tensor (QGT) characterizes the complete geometric properties of quantum states, with the symmetric part being the quantum metric, and the antisymmetric part b…
Circuit complexity of quantum access models for encoding classical data
Xiao-Ming Zhang, Xiao Yuan
Classical data encoding is usually treated as a black-box in the oracle-based quantum algorithms. On the other hand, their constructions are crucial for practical algorithm impleme…
State-independent geometric quantum gates via nonadiabatic and noncyclic evolution
Yue Chen, Li-Na Ji, Zheng-Yuan Xue +1
Geometric phases are robust to local noises and the nonadiabatic ones can reduce the evolution time, thus nonadiabatic geometric gates have strong robustness and can approach high…
Quantum interference between non-identical single particles
Keyu Su, Yi Zhong, Shanchao Zhang +5
Quantum interference between identical single particles reveals the intrinsic quantum statistic nature of particles, which could not be interpreted through classical physics. Here,…
Topologically protected subradiant cavity polaritons through linewidth narrowing enabled by dissipationless edge states
Yuwei Lu, Jingfeng Liu, Haoxiang Jiang +1
Cavity polaritons derived from the strong light-matter interaction at the quantum level provide a basis for efficient manipulation of quantum states via cavity field. Polaritons wi…
Enhanced coherent light-matter interaction and room-temperature quantum yield of plasmonic resonances engineered by a chiral exceptional point
Yuwei Lu, Haoxiang Jiang, Renming Liu
Strong dissipation of plasmonic resonances is detrimental to quantum manipulation. To enhance the quantum coherence, we propose to tailor the local density of states (LDOS) of plas…