TY - JOUR
T1 - Parity-symmetry-breaking quantum phase transition via parametric drive in a cavity magnonic system
AU - Zhang, Guo Qiang
AU - Chen, Zhen
AU - Xiong, Wei
AU - Lam, Chi Hang
AU - You, J. Q.
N1 - Funding Information:
This work is supported by the National Natural Science Foundation of China (Grants No. 11774022, No. U1801661, No. 11934010, and No. 11804074), the Postdoctoral Science Foundation of China (Grant No. 2020M671687), and Zhejiang Province Program for Science and Technology (Grant No. 2020C01019). C.H.L. is supported by Hong Kong General Research Fund (Grant No. 15301717).
Publisher Copyright:
© 2021 American Physical Society.
PY - 2021/8/1
Y1 - 2021/8/1
N2 - We study the parity-symmetry-breaking quantum phase transition (QPT) in a cavity magnonic system driven by a parametric field, where the magnons in a ferrimagnetic yttrium-iron-garnet sphere strongly couple to a microwave cavity. With appropriate parameters, this cavity magnonic system can exhibit a rich phase diagram, including the parity-symmetric phase, parity-symmetry-broken phase, and bistable phase. When increasing the drive strength beyond a critical threshold, the cavity magnonic system undergoes either a first- or second-order nonequilibrium QPT from the parity-symmetric phase with microscopic excitations to the parity-symmetry-broken phase with macroscopic excitations, depending on the parameters of the system. Our work provides an alternate way to engineer the QPT in a hybrid quantum system containing the spin ensemble in a ferri- or ferromagnetic material with strong exchange interactions.
AB - We study the parity-symmetry-breaking quantum phase transition (QPT) in a cavity magnonic system driven by a parametric field, where the magnons in a ferrimagnetic yttrium-iron-garnet sphere strongly couple to a microwave cavity. With appropriate parameters, this cavity magnonic system can exhibit a rich phase diagram, including the parity-symmetric phase, parity-symmetry-broken phase, and bistable phase. When increasing the drive strength beyond a critical threshold, the cavity magnonic system undergoes either a first- or second-order nonequilibrium QPT from the parity-symmetric phase with microscopic excitations to the parity-symmetry-broken phase with macroscopic excitations, depending on the parameters of the system. Our work provides an alternate way to engineer the QPT in a hybrid quantum system containing the spin ensemble in a ferri- or ferromagnetic material with strong exchange interactions.
UR - http://www.scopus.com/inward/record.url?scp=85113135772&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.104.064423
DO - 10.1103/PhysRevB.104.064423
M3 - Journal article
AN - SCOPUS:85113135772
VL - 104
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 6
M1 - 064423
ER -