6 papers
Quantum Otto engine with field-decoupled idle levels in a non-Hermitian XY model
Maimaitiyiming Tusun, Fang Zhao
We investigated a quantum Otto cycle in a non-Hermitian two-qubit XY model with a staggered imaginary magnetic field. The energy spectrum of this system naturally decomposes into a…
Token-Operations-Oriented Inference Optimization Techniques for Large Models
Shiguo Lian, Kai Wang, Zhaoxiang Liu +23
Large model inference optimization serves as a key foundation for supporting the scalable, low-cost, and highly stable operation of large model services. Centered on token-oriented…
Quantum Otto engine powered by an anisotropic Heisenberg XYZ model under independent local magnetic fields
Meiru Li, Maimaitiyiming Tusun, Fang Zhao +2
We study a quantum Otto heat engine whose working substance is an anisotropic two-qubit Heisenberg XYZ model. Independent local magnetic fields are used to control each spin indivi…
A Cascaded Random Access Quantum Memory
Ziqian Li, Eesh Gupta, Fang Zhao +7
Dynamic random access memory (DRAM) is critical to classical computing but notably absent in current superconducting quantum processors. Integrating high-coherence memory units wou…
A Flux-Tunable cavity for Dark matter detection
Fang Zhao, Ziqian Li, Akash V. Dixit +7
Developing a dark matter detector with wide mass tunability is an immensely desirable property, yet it is challenging due to maintaining strong sensitivity. Resonant cavities for d…
Niobium coaxial cavities with internal quality factors exceeding 1.5 billion for circuit quantum electrodynamics
Andrew E. Oriani, Fang Zhao, Tanay Roy +6
Group-V materials such as niobium and tantalum have become popular choices for extending the performance of circuit quantum electrodynamics (cQED) platforms allowing for quantum pr…