Search for decoherence from quantum gravity with atmospheric neutrinos
Artikel i vetenskaplig tidskrift, 2024
Neutrino oscillations at the highest energies and longest baselines can be used to study the structure of spacetime and test the fundamental principles of quantum mechanics. If the metric of spacetime has a quantum mechanical description, its fluctuations at the Planck scale are expected to introduce non-unitary effects that are inconsistent with the standard unitary time evolution of quantum mechanics. Neutrinos interacting with such fluctuations would lose their quantum coherence, deviating from the expected oscillatory flavour composition at long distances and high energies. Here we use atmospheric neutrinos detected by the IceCube South Pole Neutrino Observatory in the energy range of 0.5-10.0 TeV to search for coherence loss in neutrino propagation. We find no evidence of anomalous neutrino decoherence and determine limits on neutrino-quantum gravity interactions. The constraint on the effective decoherence strength parameter within an energy-independent decoherence model improves on previous limits by a factor of 30. For decoherence effects scaling as E2, our limits are advanced by more than six orders of magnitude beyond past measurements compared with the state of the art. Interactions of atmospheric neutrinos with quantum-gravity-induced fluctuations of the metric of spacetime would lead to decoherence. The IceCube Collaboration constrains such interactions with atmospheric neutrinos.
Författare
R. Abbasi
Loyola Univ, Dept Phys
M. Ackermann
Deutsches Elektronen-Synchrotron (DESY)
J. Adams
University of Canterbury
S. K. Agarwalla
University of Wisconsin Madison
University of Wisconsin
Institute of Physics Bhubaneswar
J. A. Aguilar
Université libre de Bruxelles (ULB)
M. Ahlers
Köpenhamns universitet
J. M. Alameddine
Technische Universität Dortmund
N. M. Amin
University of Delaware
K. Andeen
Marquette University
G. Anton
Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
C. Arguelles
Harvard University
Y. Ashida
University of Utah
S. Athanasiadou
Deutsches Elektronen-Synchrotron (DESY)
L. Ausborm
RWTH Aachen University
S. N. Axani
University of Delaware
X. Bai
South Dakota School of Mines & Technology
A. Balagopal
University of Wisconsin Madison
University of Wisconsin
M. Baricevic
University of Wisconsin Madison
University of Wisconsin
S. W. Barwick
University of California at Irvine (UCI)
V. Basu
University of Wisconsin
University of Wisconsin Madison
R. Bay
University of California at Berkeley
J. J. Beatty
Ohio State University
J. Becker Tjus
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
J. Beise
Uppsala universitet
C. Bellenghi
Technische Universität München
C. Benning
RWTH Aachen University
S. BenZvi
University of Rochester
D. Berley
University of Maryland
E. Bernardini
Università di Padova
D. Z. Besson
University of Kansas
E. Blaufuss
University of Maryland
S. Blot
Deutsches Elektronen-Synchrotron (DESY)
F. Bontempo
Karlsruher Institut für Technologie (KIT)
J. Y. Book
Harvard University
C. Boscolo Meneguolo
Università di Padova
S. Boser
Johannes Gutenberg-Universität Mainz
O. Botner
Uppsala universitet
J. Bottcher
RWTH Aachen University
B. Brinson
Georgia Institute of Technology
J. Brostean-Kaiser
Deutsches Elektronen-Synchrotron (DESY)
L. Brusa
RWTH Aachen University
R. T. Burley
University of Adelaide
R. S. Busse
Universität Münster
D. Butterfield
University of Wisconsin Madison
University of Wisconsin
M. A. Campana
Drexel University
K. Carloni
Harvard University
E. G. Carnie-Bronca
University of Adelaide
S. Chattopadhyay
University of Wisconsin Madison
University of Wisconsin
Institute of Physics Bhubaneswar
N. Chau
Université libre de Bruxelles (ULB)
C. Chen
Georgia Institute of Technology
Z. Chen
SUNY Stony Brook
D. Chirkin
University of Wisconsin Madison
University of Wisconsin
S. Choi
Sungkyunkwan University
B. A. Clark
University of Maryland
A. Coleman
Uppsala universitet
University of Wisconsin Madison
University of Wisconsin
G. H. Collin
Massachusetts Institute of Technology (MIT)
A. Connolly
Ohio State University
J. M. Conrad
Massachusetts Institute of Technology (MIT)
P. Coppin
Vrije Universiteit Brüssel (VUB)
P. Correa
Vrije Universiteit Brüssel (VUB)
D. F. Cowen
Pennsylvania State University
P. Dave
Georgia Institute of Technology
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J. J. DeLaunay
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G. de Wasseige
Universite catholique de Louvain
T. DeYoung
Michigan State University
A. Diaz
Massachusetts Institute of Technology (MIT)
J. C. Diaz-Velez
University of Wisconsin
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M. Dittmer
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A. Domi
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H. Dujmovic
University of Wisconsin
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University of Wisconsin
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T. Ehrhardt
Johannes Gutenberg-Universität Mainz
A. Eimer
Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
P. Eller
Technische Universität München
E. Ellinger
Bergische Universität Wuppertal
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Lawrence Berkeley National Laboratory
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Karlsruher Institut für Technologie (KIT)
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M. A. Unland Elorrieta
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Nature Physics
1745-2473 (ISSN) 17452481 (eISSN)
Vol. In PressÄmneskategorier
Subatomär fysik
DOI
10.1038/s41567-024-02436-w