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We review various field theory approaches to the description of neutrino oscillations in vacuum and external fields. First we discuss a relativistic quantum mechanics based approach which involves the temporal evolution of massive…

High Energy Physics - Phenomenology · Physics 2015-03-17 Maxim Dvornikov

We consider neutrino oscillations as non stationary phenomenon based on Schrodinger evolution equation and mixed neutrino states with definite flavor. We demonstrate that for such states invariance under translations in time does not take…

High Energy Physics - Phenomenology · Physics 2016-09-06 S. M. Bilenky , M. D. Mateev

Neutrinos propagating in matter acquire an effective electromagnetic vertex induced by their weak interactions with the charged particles in the background. In the presence of an external magnetic field the induced vertex affects the flavor…

High Energy Physics - Phenomenology · Physics 2009-10-28 Juan Carlos D'Olivo , Jose F. Nieves

The linearized Einstein equation describing graviton propagation through a chiral medium appears to be helicity dependent. We analyze features of the corresponding spectrum in a collision-less regime above a flat background. In the long…

High Energy Physics - Theory · Physics 2018-04-04 Andrey Sadofyev , Srimoyee Sen

The theoretical explanation for the chiral-induced spin selectivity effect, in which electrons' passage through a chiral system depends on their spin and the handedness of the system, remains vague. Although most experimental work was…

Mesoscale and Nanoscale Physics · Physics 2022-03-01 Tapan Kumar Das , Francesco Tassinari , Ron Naaman , Jonas Fransson

We study the quantum mechanics of a Dirac fermion on a curved spacetime manifold. The metric of the spacetime is completely arbitrary, allowing for the discussion of all possible inertial and gravitational field configurations. In this…

General Relativity and Quantum Cosmology · Physics 2013-12-04 Yuri N. Obukhov , Alexander J. Silenko , Oleg V. Teryaev

From quantum field theory, we derive the chiral kinetic theory involving nonlinear quantum corrections coupled with spacetime-dependent electromagnetic fields and fluid velocity gradients. An equilibrium Wigner function determined by the…

High Energy Physics - Theory · Physics 2025-07-02 Kazuya Mameda

Electric charge neutrality in a compact star provides an important relation- ship between the chiral dynamics and neutrino propagation in the star. Since the sudden drop of the electron density at the critical point of the first-order…

Astrophysics · Physics 2015-06-24 Chengfu Mu , Gaofeng Sun , Pengfei Zhuang

The flow of time moves in one direction in any spatial position and orientation in this universe. Chiral objects, which lack mirror symmetry, retain their chirality regardless of their position or orientation. Despite being seemingly…

General Physics · Physics 2025-07-22 Sang-Wook Cheong , Fei-Ting Huang

Chiral molecules form a number of non-chiral structures, the simplest being an isotropic fluid phase. In a mesophase of achiral molecules the fluctuations will on average be achiral as well: left-handed twists and right-handed twists will…

Condensed Matter · Physics 2008-02-03 T. C. Lubensky , Randall D. Kamien , Holger Stark

We study the evolution of massive mixed Dirac and Majorana neutrinos in matter under the influence of a transversal magnetic field. The analysis is based on relativistic quantum mechanics. We solve exactly the evolution equation for…

High Energy Physics - Phenomenology · Physics 2009-07-09 Maxim Dvornikov , Jukka Maalampi

If massive neutrinos possess magnetic moments, they can undergo spin flip in a magnetic field. The magnetic fields needed for a meaningful measurement of neutrino moments could be very high and may occur in astronomical objects such as some…

High Energy Physics - Phenomenology · Physics 2022-02-23 G. Domokos , S. Kovesi-Domokos

Neutrino mixing is caused by the fact that neutrino flavors are not eigenstates of the free Hamiltonian. This causes oscillations among different neutrino flavors. When neutrinos pass through a medium, weak interactions produce different…

High Energy Physics - Phenomenology · Physics 2023-07-18 Riya Barick , Indrajit Ghose , Amitabha Lahiri

The thermal contribution to the chiral vortical effect is believed to be related to the axial anomaly in external gravitational fields. We use the universality of the spin-gravity interaction to extend this idea to a wider set of phenomena.…

High Energy Physics - Theory · Physics 2017-08-30 Artur Avkhadiev , Andrey V. Sadofyev

We study neutrino oscillations in a rotating spacetime under the weak gravity limit for the trajectories of neutrinos which are constrained in the equatorial plane. Using the asymptotic form of the Kerr metric, we show that the rotation of…

High Energy Physics - Phenomenology · Physics 2022-11-01 Himanshu Swami

A gravitationally-induced modification to de Broglie wave-particle duality is presented. At Planck scale, the gravitationally-modified matter wavelength saturates to a few times the Planck length in a momentum independent manner. In certain…

General Relativity and Quantum Cosmology · Physics 2008-11-26 D. V. Ahluwalia

We discuss the impact of ideas of open quantum systems and quantum information to various facets of neutrino and neutral meson oscillations. These oscillations are characterized by a number of quantum correlations, both spatial as well as…

High Energy Physics - Phenomenology · Physics 2024-12-05 Subhashish Banerjee

We point out that neutrino oscillations imply an ambiguity in the definition of the vacuum and the coupling to gravity, with experimentally observable consequences due to the Unruh effect. In an accelerating frame, the detector should see a…

High Energy Physics - Phenomenology · Physics 2016-06-22 Dharam Vir Ahluwalia , Lance Labun , Giorgio Torrieri

We study the shock waves in relativistic chiral matter. We argue that the conventional Rankine-Hugoinot relations are modified due to the presence of chiral transport phenomena. We show that the entropy discontinuity in a weak shock wave is…

High Energy Physics - Theory · Physics 2017-05-10 Srimoyee Sen , Naoki Yamamoto

We analyze both chirality-changing and chirality-preserving transitions of Dirac-Majorana neutrinos. In vacuum, the first ones are suppressed with respect to the others due to helicity conservation and the interactions with a (``normal'')…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. Esposito