Translationally invariant bidimensional magnetic Laplacians are considered. Using an improved version of the harmonic approximation, we establish the absence of a point spectrum under various assumptions on the behavior of the magnetic field.

1.
H.
Cycon
,
R.
Froese
,
W.
Kirsch
, and
B.
Simon
,
Schrödinger Operators with Application to Quantum Mechanics and Global Geometry
, Texts and Monographs in Physics (
Springer-Verlag
,
1987
).
2.
P.
Exner
,
T.
Kalvoda
, and
M.
Tušek
, “
A geometric Iwatsuka type effect in quantum layers
,”
J. Math. Phys.
59
(
4
),
042105
(
2018
).
3.
P.
Exner
and
H.
Kovařík
, “
Magnetic strip waveguides
,”
J. Phys. A: Math. Gen.
33
(
16
),
3297
3311
(
2000
).
4.
B.
Helffer
,
Semi-Classical Analysis for the Schrödinger Operator and Applications
, Number 1336 in Lecture Notes in Mathematics (
Springer-Verlag Berlin Heidelberg
,
1988
).
5.
P. D.
Hislop
,
N.
Popoff
,
N.
Raymond
, and
M. P.
Sundqvist
, “
Band functions in the presence of magnetic steps
,”
Math. Models Methods Appl. Sci.
26
(
1
),
161
184
(
2016
).
6.
P. D.
Hislop
and
E.
Soccorsi
, “
Edge states induced by Iwatsuka Hamiltonians with positive magnetic fields
,”
J. Math. Anal. Appl.
422
(
1
),
594
624
(
2015
).
7.
A.
Iwatsuka
, “
Examples of absolutely continuous Schrödinger operators in magnetic fields
,”
Publ. Res. Inst. Math. Sci.
21
(
2
),
385
401
(
1985
).
8.
R.
Jost
and
A.
Pais
, “
On the scattering of a particle by a static potential
,”
Phys. Rev.
82
(
2
),
840
851
(
1951
).
9.
P.
Miranda
and
N.
Popoff
, “
Spectrum of the Iwatsuka Hamiltonian at thresholds
,”
J. Math. Anal. Appl.
460
(
2
),
516
545
(
2018
).
10.
M.
Mǎntoiu
and
R.
Purice
, “
Some propagation properties of the Iwatsuka model
,”
Commun. Math. Phys.
188
(
3
),
691
708
(
1997
).
11.
N.
Raymond
,
Bound States of the Magnetic Schrödinger Operator
, Volume 27 of Tracts in Mathematics (
European Mathematical Society
,
2017
).
12.
N.
Raymond
and
S.
Vũ Ngoc̣
, “
Geometry and spectrum in 2D magnetic wells
,”
Ann. Inst. Fourier
65
(
1
),
137
169
(
2015
).
13.
M.
Reed
and
B.
Simon
,
Method of Modern Mathematical Physics: Analysis of Operators
(
Academic Press
,
1979
), Vol. IV.
14.
J.
Reijniers
and
F.
Peeters
, “
Snake orbits and related magnetic edge states
,”
J. Phys.: Condens. Matter
12
(
47
),
9771
(
2000
).
15.
B.
Simon
, “
Semiclassical analysis of low lying eigenvalues. I. Nondegenerate minima: Asymptotic expansions
,”
Ann. Inst. H. Poincaré Sect. A
38
(
3
),
295
308
(
1983
), available at http://www.numdam.org/item/AIHPA_1983__38_3_295_0.
16.
M.
Tušek
, “
On an extension of the Iwatsuka model
,”
J. Phys. A: Math. Theor.
49
(
36
),
365205
(
2016
).
17.
D.
Yafaev
, “
On spectral properties of translationally invariant magnetic Schrödinger operators
,”
Ann. Henri Poincaré
9
(
1
),
181
207
(
2008
).
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