Hölder estimates for magnetic Schrödinger semigroups in $${\mathbb {R}}^{d}$$ from mirror coupling
Abstract We use the mirror coupling of Brownian motion to show that under a $$\beta \in (0,1)$$ β ∈ ( 0 , 1 ) -dependent Kato-type assumption on the possibly nonsmooth electromagnetic potential, the corresponding magnetic Schrödinger semigroup in $${\mathbb {R}}^d$$ R d has a global $$L^{p}$$ L p -t...
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Published in | Letters in mathematical physics Vol. 111; no. 1 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
01.02.2021
|
Online Access | Get full text |
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Summary: | Abstract
We use the mirror coupling of Brownian motion to show that under a
$$\beta \in (0,1)$$
β
∈
(
0
,
1
)
-dependent Kato-type assumption on the possibly nonsmooth electromagnetic potential, the corresponding magnetic Schrödinger semigroup in
$${\mathbb {R}}^d$$
R
d
has a global
$$L^{p}$$
L
p
-to-
$$C^{0,\beta }$$
C
0
,
β
Hölder smoothing property for all
$$p\in [1,\infty ]$$
p
∈
[
1
,
∞
]
; in particular, his all eigenfunctions are uniformly
$$\beta $$
β
-Hölder continuous. This result shows that the eigenfunctions of the Hamilton operator of a molecule in a magnetic field are uniformly
$$\beta $$
β
-Hölder continuous under weak
$$L^q$$
L
q
-assumptions on the magnetic potential. |
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ISSN: | 0377-9017 1573-0530 |
DOI: | 10.1007/s11005-021-01360-x |