We study if eternal inflation is realized while satisfying the recently proposed string swampland criteria concerning the range of scalar field excursion, | Δ ? | < D · M P , and the potential gradient, | ? V | > c · V / M P , where D and c are constants of order unity and M P is the reduced Planck mass. We find that only the eternal inflation of chaotic type is possible for c ～ O ( 0.01 ) and 1 / D ～ O ( 0.01 ) and that the Hubble parameter during the eternal inflation is parametrically close to the Planck scale and is in the range of 2 π c ? H inf / M P < 1 / 3 .
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机译：我们研究在满足最近提出的有关标量场偏移范围的弦沼泽标准的同时，是否实现了永久性通货膨胀， Δ？ | c·V / M P，其中D和c是阶数为1的常数，M P是缩减的普朗克质量。我们发现，对于c〜O（0.01）和1 / D〜O（0.01），只有混沌类型的永恒膨胀是可能的，并且永恒膨胀期间的Hubble参数在参数上接近普朗克标度，并且在2πc？ H inf / M P <1/3。
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