Degenerate Bose gases near a d -wave shape resonance

摘要: Understanding quantum many-body systems with strong interactions and unconventional phases therein is one of the most challenging tasks in physics. In cold atom physics, this has been a focused research topic for nearly two decades, where are naturally created well manipulated by bringing system close to scattering resonance. However, studies thus far have limited s-wave Here, we report experimental observation tunable broad d-wave shape resonance degenerate 41K gas, hallmarked fact that molecular binding energies split into three branches. The measured lifetime regime found be much longer than characteristic timescale relaxations. analysis breathing mode, excited ramping through resonance, suggests low-temperature atom–molecule mixture produced. Our offers great promise studying superfluid. A associated quasi-bound diatomic levels trapped behind centrifugal barrier observed quantum-degenerate potassium gas. Various measurements reveal character collisions.