Bo Song
Hong Kong University of Science and Technology
Ultracold atomPhysicsSpin–orbit interactionTopologyTopological insulatorHyperfine structureQuasiparticleElectronQuantum dynamicsDipoleSemimetalAtomic physicsFermi Gamma-ray Space TelescopeCondensed matter physicsTheoretical physicsSpin statesTopology (chemistry)Stark effectFermionYtterbiumQuantum mechanicsRealization (systems)Degenerate energy levelsQuantum phasesSpin-½QuantumFermi gasOptical lattice
31Publications
7H-index
234Citations
Publications 25
Newest
#1Bo SongH-Index: 7
#2Shovan DuttaH-Index: 6
Last. Ulrich SchneiderH-Index: 32
view all 7 authors...
Discontinuous quantum phase transitions and the associated metastability play central roles in diverse areas of physics ranging from ferromagnetism to false vacuum decay in the early universe. Using strongly-interacting ultracold atoms in an optical lattice, we realize a driven many-body system whose quantum phase transition can be tuned from continuous to discontinuous. Resonant shaking of a one-dimensional optical lattice hybridizes the lowest two Bloch bands, driving a novel transition from a...
#1Bo Song (HKUST: Hong Kong University of Science and Technology)H-Index: 7
#2Yangqian Yan (Purdue University)H-Index: 9
Last. Gyu-Boong Jo (HKUST: Hong Kong University of Science and Technology)H-Index: 16
view all 6 authors...
Quantum simulations show that bosonization---bosonlike behavior emerging from an ensemble of fermions---can occur in 3D systems, a hypothesis that until now has been unresolved.
Source
#1Bo SongH-Index: 7
#2Chengdong HeH-Index: 6
Last. Gyu-Boong JoH-Index: 16
view all 6 authors...
High-sensitivity imaging of ultracold atoms is often challenging when interference patterns are imprinted on the imaging light. Such image noises result in low signal-to-noise ratio and limit the capability of extracting subtle physical quantities. Here we demonstrate an advanced fringe removal algorithm for absorption imaging of ultracold atoms, which efficiently suppresses unwanted fringe patterns using a small number of sample images without taking additional reference images. The protocol is...
Source
#1Chengdong He (HKUST: Hong Kong University of Science and Technology)H-Index: 6
#2Zejian Ren (HKUST: Hong Kong University of Science and Technology)H-Index: 5
Last. Gyu-Boong Jo (HKUST: Hong Kong University of Science and Technology)H-Index: 16
view all 8 authors...
The authors realize a two-dimensional gas of SU(N) fermions, and evaluate collective mode frequencies in the system. It includes the measurements of breathing and quadrupole mode frequencies, the latter of which decreases for larger spin component N due to the enhanced interaction. The paper provides a mean-field theory in good agreement with the observation. The dimensional evolution of collective excitations from two to three dimensions and the damping rate of collective modes provides an insi...
Source
#1Bo Song (HKUST: Hong Kong University of Science and Technology)H-Index: 7
#2Chengdong He (HKUST: Hong Kong University of Science and Technology)H-Index: 6
Last. Gyu-Boong Jo (HKUST: Hong Kong University of Science and Technology)H-Index: 16
view all 7 authors...
The observation of topological phases beyond two dimensions, as widely reported in solid-state systems1,2, has been an open challenge for ultracold atoms. Although many theoretical schemes have been proposed, the experimental complexity in realizing and characterizing the three-dimensional (3D) band structure has acted as a barrier against experiments achieving this. Here, we realize a 3D spin–orbit coupled nodal-line semimetal in an optical Raman lattice filled with ultracold fermions, and obse...
Source
#1Chengdong HeH-Index: 6
#2Bo SongH-Index: 7
Last. Gyu-Boong JoH-Index: 16
view all 8 authors...
#1Chengdong HeH-Index: 6
#2Bo SongH-Index: 7
Last. Gyu-Boong JoH-Index: 16
view all 8 authors...
#1Zejian RenH-Index: 5
#2Bo SongH-Index: 7
Last. Gyu-Boong JoH-Index: 16
view all 8 authors...
#1Zejian RenH-Index: 5
#2Bo SongH-Index: 7
Last. Gyu-Boong JoH-Index: 16
view all 8 authors...
#1Chengdong HeH-Index: 6
#2Elnur HajiyevH-Index: 6
Last. Gyu-Boong JoH-Index: 16
view all 5 authors...
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