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Majorana fermions can be bound to a defect at zero energy, and then the combined objects are called Majorana bound states or Majorana zero modes. [12] This name is more appropriate than Majorana fermion (although the distinction is not always made in the literature), because the statistics of these objects is no longer fermionic .
Spin-1/2 Majorana fermions, such as the hypothetical neutralino, can be described as either a dependent 4-component Majorana spinor or a single 2-component Weyl spinor. It is not known whether the neutrino is a Majorana fermion or a Dirac fermion; observing neutrinoless double-beta decay experimentally would settle this question.
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Particles corresponding to Majorana spinors are known as Majorana particles, due to the above self-conjugacy constraint. All the fermions included in the Standard Model have been excluded as Majorana fermions (since they have non-zero electric charge they cannot be antiparticles of themselves) with the exception of the neutrino (which is neutral).
Ettore Majorana (/ m aɪ ə ˈ r ɑː n ə /, [2] Italian: [ˈɛttore majoˈraːna]; born on 5 August 1906 – likely dying in or after 1959) [1] was an Italian theoretical physicist who worked on neutrino masses.
American YouTube personality MrBeast is the most-subscribed channel on YouTube, with 364 million subscribers as of February 2025.. A subscriber to a channel on the American video-sharing platform YouTube is a user who has chosen to receive the channel's content by clicking on that channel's "Subscribe" button, and each user's subscription feed consists of videos published by channels to which ...
So far, the algorithm has been found to evade the sign problem in test models that have a sign problem but do not involve fermions. [11] Majorana algorithms: Using Majorana fermion representation to perform Hubbard-Stratonovich transformations can help to solve the fermion sign problem in a class of fermionic many-body models. [12] [13]
Majorana may refer to: Ettore Majorana, an Italian theoretical physicist; Majorana (surname), an Italian surname; MAJORANA, a physics search for neutrinoless double-beta decay; Majorana fermion; Majorana Prize, a prize for theoretical and mathematical physics