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Observation of critical phenomena in parity-time-symmetric quantum dynamics
Lei Xiao, Kunkun Wang, Xiang Zhan +5
We experimentally simulate non-unitary quantum dynamics using a single-photon interferometric network and study the information flow between a parity-time (PT)-symmetric non-Hermit…
Higher winding number in a non-unitary photonic quantum walk
Lei Xiao, Xingze Qiu, Kunkun Wang +6
Topological matter exhibits exotic properties yet phases characterized by large topological invariants are difficult to implement, despite rapid experimental progress. A promising…
Chiral Majorana edge states in the vortex core of a Fermi superfluid
Jing-Bo Wang, Wei Yi, Jian-Song Pan
We study a single vortex in a two-dimensional Fermi superfluid interacting with a Bose-Einstein condensate. The Fermi superfluid is topologically non-trivial and hosts a zer…
Observation of emergent momentum-time skyrmions in parity-time-symmetric non-unitary quench dynamics
Kunkun Wang, Xingze Qiu, Lei Xiao +5
Topology in quench dynamics gives rise to intriguing dynamic topological phenomena, which are intimately connected to the topology of static Hamiltonians yet challenging to probe e…
Simulating dynamic quantum phase transitions in photonic quantum walks
Kunkun Wang, Xingze Qiu, Lei Xiao +4
Signaled by non-analyticities in the time evolution of physical observables, dynamic quantum phase transitions (DQPTs) emerge in quench dynamics of topological systems and possess…
Bloch bound state of spin-orbit-coupled fermions in an optical lattice
Baihua Gong, Shuai Li, Xin-Hui Zhang +2
Understanding fundamentals of few-body physics provides an interesting bottom-up approach for the clarification of many-body properties. The remarkable experimental progress in rea…