Testing quantum decoherence at DUNE

Carpio, Jose Alonso; Massoni, E.; Gago, A. M.

doi:10.1103/physrevd.100.015035

Cited by 28 publications

(23 citation statements)

References 92 publications

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“…This section discusses the effect of VEP on CP violation sensitivity at DUNE experiment. To refer to DUNE sensitivity to CP violation, the definition shown in [49,68] are taken into account.…”

Section: Cp Violation Sensitivitymentioning

confidence: 99%

“…Therefore, studying the sensitivity to MH is extremely important, since we have shown VEP scenarios where the asymmetry of these channels is clearly affected. The MH sensitivity is obtained as follows [49,68]. Taking into account the analysis explained in the previous section we study the impact on the MH sensitivity considering VEP/NH in nature and assuming SO/IH as theoretical hypothesis.…”

Section: Mass Hierarchy Sensitivitymentioning

confidence: 99%

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Effects of the violation of the equivalence principle at DUNE

2020

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A number of different effects of the violation of the equivalence principle (VEP), taken as subleading mechanism of neutrino flavor oscillation, are examined within the framework of the DUNE experiment. We study the possibility of obtaining a misleading neutrino oscillation parameter region caused by our unawareness of VEP. Additionally, we evaluate the impact on the measurement of CP violation and the distinction of neutrino mass hierarchy at DUNE. Besides, limits on VEP for a wide variety of textures of the matrix that connects neutrino gravity eigenstates to flavor eigenstates are imposed. An extra task of our study is to set limits on Hamiltonian added terms considering different energy dependencies (E d−3 , with d ¼ 3, 4, 5, 6) that can be associated to the usual Lorentz violating terms defined in the Standard Model extension Hamiltonian. In order to understand our results, approximated analytical three neutrino oscillation probability formulae are derived.

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Section: Cp Violation Sensitivitymentioning

confidence: 99%

Section: Mass Hierarchy Sensitivitymentioning

confidence: 99%

Effects of the violation of the equivalence principle at DUNE

2020

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“…Recent studies [6][7][8][9][10][11][12][13]44] on neutrino oscillation coherence embrace the GKSL approach [21,22], a general framework that describes the time-homogeneous Markovian evolution of quantum density operator ρ. Such evolutions form a quantum dynamical semigroup.…”

Section: Formalismmentioning

confidence: 99%

“…Resent studies on neutrino oscillation coherence [6][7][8][9][10][11][12][13]44] embrace the more general Gorini-Kossakowski-Sudarshan-Lindblad (GKSL) framework [21,22] rather that the standard 3-state unitary evolution scheme, and test compatible with this framework is therefore worth to be investigated. Also, it is possible to improve existing works by including the effect of energy uncertainties, an effect that plays an important role in experimental observations of neutrino oscillation.…”

Section: Introductionmentioning

confidence: 99%

“…Also, it is possible to improve existing works by including the effect of energy uncertainties, an effect that plays an important role in experimental observations of neutrino oscillation. Methods such as analyzing the data with parameterized decoherence models [10,[42][43][44] or employing quantum resource theory tools other than Bell-like inequalities [45,46], are applied to study the same topic as well.…”

Section: Introductionmentioning

confidence: 99%

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New test of neutrino oscillation coherence with Leggett–Garg inequality

Wang

2022

Eur. Phys. J. C

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Leggett–Garg inequality (LGI) is a time analogue of Bell’s inequality that concerns measurements performed on a system at different times. Violation to LGI indicates quantum coherence. We present a Leggett–Garg-type inequality compatible with more general neutrino oscillation frameworks, allowing the effects of decoherence to be taken into consideration. The inequality is applied to test coherence for data from Daya Bay, MINOS, and KamLAND experiments, and their results are compared to theoretical predictions to investigate decoherence. Both Daya Bay and MINOS data exhibit clear violations of over $$10\sigma $$ 10 σ , and of over 90$$\%$$ % of theoretical predictions, while the KamLAND data exhibit violation of $$1.9\sigma $$ 1.9 σ , being of 58$$\%$$ % of the theoretical prediction. The present work is the first to have considered the energy uncertainties in neutrino coherence tests.

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Microscopic and macroscopic effects in the decoherence of neutrino oscillations

Cheng

Lindner

Rodejohann

2022

J. High Energ. Phys.

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We present a generic structure (the layer structure) for decoherence effects in neutrino oscillations, which includes decoherence from quantum mechanical and classical uncertainties. The calculation is done by combining the concept of open quantum system and quantum field theory, forming a structure composed of phase spaces from microscopic to macroscopic level. Having information loss at different levels, quantum mechanical uncertainties parameterize decoherence by an intrinsic mass eigenstate separation effect, while decoherence for classical uncertainties is typically dominated by a statistical averaging effect. With the help of the layer structure, we classify the former as state decoherence (SD) and the latter as phase decoherence (PD), then further conclude that both SD and PD result from phase wash-out effects of different phase structures on different layers. Such effects admit for simple numerical calculations of decoherence for a given width and shape of uncertainties. While our structure is generic, so are the uncertainties, nonetheless, a few notable ones are: the wavepacket size of the external particles, the effective interaction volume at production and detection, the energy reconstruction model and the neutrino production profile. Furthermore, we estimate the experimental sensitivities for SD and PD parameterized by the uncertainty parameters, for reactor neutrinos and decay-at-rest neutrinos, using a traditional rate measuring method and a novel phase measuring method.

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Testing quantum decoherence at DUNE

Cited by 28 publications

References 92 publications

Effects of the violation of the equivalence principle at DUNE

Effects of the violation of the equivalence principle at DUNE

New test of neutrino oscillation coherence with Leggett–Garg inequality

Microscopic and macroscopic effects in the decoherence of neutrino oscillations

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