Xue-Feng Pan

May 6, 2024 | link.aps.org | Xue-Feng Pan |Quantum Optoelectronic Devices |Xi’an Jiaotong |Peng-Bo Li

Coherent and dissipative interactions between different quantum systems are essential for the construction of hybrid quantum systems and the investigation of novel quantum phenomena. Here, we propose and analyze a magnon-skyrmion hybrid quantum system, consisting of a micromagnet and nearby magnetic skyrmions. We predict a strong-coupling mechanism between the magnonic mode of the micromagnet and the quantized helicity degree of freedom of the skyrmion.

Apr 18, 2024 | link.aps.org | Xue-Feng Pan |Quantum Optoelectronic Devices |Xi'an Jiaotong |Xin-Lei Hei

Skyrmion qubits are a new highly promising logic element for quantum information processing. However, their scalability to multiple interacting qubits remains challenging. We propose a hybrid quantum setup with skyrmion qubits strongly coupled to nanomechanical cantilevers via magnetic coupling, which harnesses phonons as quantum interfaces for the manipulation of distant skyrmion qubits.

Feb 24, 2023 | link.aps.org | Quantum Optoelectronic Devices |Xi'an Jiaotong |Xin-Lei Hei |Xue-Feng Pan

Abstract Spin-mechanical hybrid systems have been widely used in quantum information processing. However, the spin-mechanical interaction is generally weak, making it a critical challenge to enhance the spin-mechanical interaction into the strong coupling or even ultrastrong coupling regime. Here, we propose a protocol that can significantly enhance the spin-mechanical coupling strength with a diamond spin vacancy and a levitated micromagnet.