Quantum reflection of ultracold antihydrogen from a solid surface

摘要: We consider the interaction of antiatoms with a solid surface and present calculations reflection probability using exact retarded potential for antihydrogen impinging on ideally conducting surface. as function collision energy show that sufficiently cold ¯ H atoms are reflected (rather than annihilated) from surface, which opens prospects storing guiding between material walls. The in ultracold regime is determined entirely by van der Waals–Casimir tail atom–wall contains information retardation effects. argue possibility exploiting antihydrogen–surface interactions probe electrodynamical gravitational properties an antiatom. found lifetime bouncing field Earth τ = ¯2Mg|Im a|) � 0.11 s. measurement conjunction our calculation scattering lengtha allows determination force Mg atom.