6 papers
Observing the emergence of a velocity hierarchy in matter waves
Xudong Yu, Wenhan Chen, Igor Zhuravlev +8
Classical waves in dispersive media naturally exhibit distinct phase and group velocities. Whether an analogous separation of velocities can emerge in matter waves under strong man…
The wave nature of a Mott insulator
Xudong Yu, Chengyang Wu, Wenhan Chen +10
Quantum phases of matter are routinely identified by coherence features, with interference patterns being one of the most directly observable quantities. In lattices, the superflui…
Ultrafast Néel vector switching
Eddie Ivor Harris-Lee, John Kay Dewhurst, Wenhan Chen +3
We predict ultrafast switching in a chiral anti-ferromagnet that occurs at femtosecond times, nearly 5 orders of magnitude faster than the torque induced nanosecond switching previ…
Quench spectroscopy for Lieb-Liniger bosons in the presence of harmonic trap
Jiachen Yu, Yuanzhe Hu, Wenhan Chen +3
Quench spectroscopy has emerged as a novel and powerful technique for probing the energy spectrum of various quantum phases for quantum systems from out-of-equilibrium dynamics. Wh…
Exposing Altermagnetism through Momentum Density Spectroscopy
Wenhan Chen, Alyn D. N. James, Stephen B. Dugdale
Materials which show a strong time-reversal symmetry-breaking response leading to spin-polarization phenomena, in conjunction with antiparallel magnetic alignments producing zero n…
Coupled femto-excitons, free carriers and light
Deepika Gill, Sam Shallcross, Wenhan Chen +2
Non-equilibrium quantum matter generated by ultrafast laser light opens new pathways in fundamental condensed matter physics, as well as offering rich control possibilities in "tai…