Li W, Reichl LE, Wu B.
Quantum chaos in a ripple billiard. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 2002;(5):056220/1-056220/9.
Diener RB, Wu B, Raizen MG, Niu Q.
Quantum tweezer for atoms. Physical Review Letters. 2002;(7):070401/1-070401/4.