Current–phase relations of a ring-trapped Bose–Einstein condensate with a weak link<xref rid="cpb_28_1_010303fn1" ref-type="fn">*</xref> <fn id="cpb_28_1_010303fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant No. 11874247), the National Key Research and Development Program of China (Grant Nos. 2017YFA0304500 and 2017YFA0304203), PCSIRT, China (Grant No. IRT-17R70), and the Program of State Key Laboratory of Quantum Optics and Quantum Optics Devices, China (Grant No. KF201703).</p> </fn>

Current–phase relations of a ring-trapped Bose–Einstein condensate with a weak link* *

Project supported by the National Natural Science Foundation of China (Grant No. 11874247), the National Key Research and Development Program of China (Grant Nos. 2017YFA0304500 and 2017YFA0304203), PCSIRT, China (Grant No. IRT-17R70), and the Program of State Key Laboratory of Quantum Optics and Quantum Optics Devices, China (Grant No. KF201703).

Zhang Xiu-Rong, Li Wei-Dong^†

Examples of the phase profiles for ℓ = 0 and various velocity v with V = 0.7μ₀, η = 100, d = 0.05 ≈ 0.7 ξ₀ in panel (a) and V = 0.6μ₀, η = 80000, d = 0.05 = 20 ξ₀ in panel (b). The grey region is the position of the barrier.