Criterion for existence of a bound state in one dimension

Let V(x)≢0 be a one-dimensional potential which vanishes outside some interval. A well-known fact is that a bound state must exist if V(x)⩽0 for all x or even if V(x) satisfies the weaker condition ∫V(x)dx

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Veröffentlicht in:American journal of physics 2000-02, Vol.68 (2), p.160-161
1. Verfasser: Brownstein, K. R.
Format: Artikel
Sprache:eng
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Zusammenfassung:Let V(x)≢0 be a one-dimensional potential which vanishes outside some interval. A well-known fact is that a bound state must exist if V(x)⩽0 for all x or even if V(x) satisfies the weaker condition ∫V(x)dx
ISSN:0002-9505
1943-2909
DOI:10.1119/1.19389