Gravity, entanglement and CPT-symmetry violation in particle mixing

Simonov, Kyrylo; Capolupo, Antonio; Giampaolo, Salvatore Marco

doi:10.1140/epjc/s10052-019-7407-y

Cited by 25 publications

(29 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We now study the scenario with a non-diagonal dissipator. In this paper, for simplicity, we consider the case for which only two symmetric off-diagonal elements are non-zero, in particular we focus on following form for the dissipator: (25) while the remaining components are zero; we will also comment on what happens if other off-diagonal elements are switched on. For the dissipator in Eq.…”

Section: Non-diagonal Dissipatormentioning

confidence: 99%

“…By working with the dissipator in Eq. (25) and using the parametrization in Eq. 5, we obtain the following C P violations for the transitions preserving the flavor: (34)…”

Section: Non-zero Majorana Phasesmentioning

confidence: 99%

“…The results here presented are obtained by considering the non-diagonal dissipator in which only α 1 is non-zero; see Eq. (25). Other kinds of dissipation matrices can be studied with other offdiagonal elements switched on.…”

Section: Non-zero Majorana Phasesmentioning

confidence: 99%

“…The phenomena of dissipation and decoherence could be consequences of the interaction between neutrinos and the surrounding environment, or space-time fluctuations induced by quantum gravity effects. Many efforts have been already made in order the study dissipation and its origin in neutrino oscillations [10,11,[14][15][16][17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Revealing neutrino nature and CPT violation with decoherence effects

et al. 2020

View full text Add to dashboard Cite

We study decoherence effects on mixing among three generations of neutrinos. We show that in presence of a non-diagonal dissipation matrix, both Dirac and Majorana neutrinos can violate the CPT symmetry and the oscillation formulae depend on the parametrization of the mixing matrix. We reveal the CP violation in the transitions preserving the flavor, for a certain form of the dissipator. In particular, for such dissipators, the CP violation affects all the transitions in the case of Majorana neutrinos, unlike Dirac neutrinos which still preserve the CP symmetry in one of the transitions flavor preserving. The precise form of the dissipation matrix is not known a-priori as it depends on the nature of the phenomenon that originates it. However, our theoretical results show that decoherence effects, if exist for neutrinos, could allow to reveal the neutrino nature and to test fundamental symmetries.

show abstract

Section: Non-diagonal Dissipatormentioning

confidence: 99%

“…By working with the dissipator in Eq. (25) and using the parametrization in Eq. 5, we obtain the following C P violations for the transitions preserving the flavor: (34)…”

Section: Non-zero Majorana Phasesmentioning

confidence: 99%

Section: Non-zero Majorana Phasesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Revealing neutrino nature and CPT violation with decoherence effects

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Particle mixing interests axion-photon system [4][5][6], η-η [7], neutral kaons [8], B 0 and D 0 mesons [9], in boson sector; neutrino flavor oscillations [10,11], neutronantineutron oscillations [12], and the quark mixing [13], in the fermion sector. Many efforts have been devoted to understanding the origin of the phenomenon and, recently, also the effects of gravity on neutral mixed particles have been analyzed [14,15]. Moreover, gravity has been also considered as a source of decoherence in flavor oscillations [16][17][18] and the effects of decoherence for mixed particles on fundamental symmetries of nature have been recently studied [19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Testing CPT violation, entanglement and gravitational interactions in particle mixing with trapped ions

2021

View full text Add to dashboard Cite

By analyzing the analogies between the effective system of N spins described by the Ising Hamiltonian and the phenomenon of the self-gravity in mixed particle systems, we show that cooled ions held in a segmented ion trap and exposed to a magnetic field gradient can simulate the proposed mechanism of mutual interaction in mixed neutrino system. We show that with trapped ions one can reproduce the expected corrections to the flavor transitions and the CPT violation induced by gravity on flavor fields, which may have played an important role in the early stages of the universe. The results presented are experimentally testable.

show abstract

Primordial Black Holes from Collapsing Antimatter

Etesi

2022

Found Sci

View full text Add to dashboard Cite

In this paper a simple (i.e. free of fine-tuning, etc.) new mechanism for primordial black hole formation based on the collapse of large antimatter systems in the early Universe is introduced. A peculiarity of this process is that, compared to their material counterparts, the collapse of large antimatter systems takes much less time due to the reversed thermodynamics of antimatter, an idea which has been proposed in our earlier paper Etesi (2021). This model has several testable predictions. The first is that the photon-baryon ratio is roughly computable and is equal to $$3.03\times 10^9$$ 3.03 × 10 9 which is quite close to its experimentally confirmed value. The second is that the mass of black holes arising from this mechanism is at least $$10^5$$ 10 5 -$$10^6M_\odot$$ 10 6 M ⊙ hence they contribute to the super- or hypermassive end of the primordial black hole mass spectrum. The third prediction is that these sort of primordial black holes constitute at least $$20\%$$ 20 % of dark matter. Last but not least the observed current asymmetry of matter and antimatter, even if their presence in the Universe was symmetric in the beginning, acquires a natural explanation, too.

show abstract

Gravity, entanglement and CPT-symmetry violation in particle mixing

Cited by 25 publications

References 58 publications

Revealing neutrino nature and CPT violation with decoherence effects

Revealing neutrino nature and CPT violation with decoherence effects

Testing CPT violation, entanglement and gravitational interactions in particle mixing with trapped ions

Primordial Black Holes from Collapsing Antimatter

Contact Info

Product

Resources

About