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Related papers: Dirac Cat States in Relativistic Landau Levels

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This work reports the three-band structure associated with a Lieb lattice with arbitrary nearest and next-nearest neighbors hopping interactions. For specific configurations, the system admits a flat band located between two dispersion…

Mesoscale and Nanoscale Physics · Physics 2022-12-07 Kevin Zelaya , Vit Jakubský

Schr\"odinger cat states, which are superpositions of macroscopically distinct states, are potentially critical resources for upcoming quantum information technologies. In this paper, we introduce a scheme to generate entangled…

High Energy Physics - Theory · Physics 2024-08-14 Partha Nandi , Nandita Debnath , Subhajit Kala , A. S. Majumdar

We show that the first order form of the Schrodinger equation proposed in [1] can be obtained from the Dirac equation in the non-relativistic limit. We also show that the Pauli Hamiltonian is obtained from this equation by requiring local…

Quantum Physics · Physics 2016-06-23 Muhammad Adeel Ajaib

In recent years, an extensive survey on various wave equations of relativistic quantum mechanics with different types of potential interactions has been a line of great interest. In this regime, special attention has been given to the Dirac…

Quantum Physics · Physics 2014-02-11 K. J Oyewumi , B. J. Falaye , C. A. Onate , O. J. Oluwadare , W. A Yahya

Studies of the formation of Landau levels based on the Schr\"odinger equation for electrons constrained to curved surfaces have a long history. These include as prime examples surfaces with constant positive and negative curvature, the…

Mesoscale and Nanoscale Physics · Physics 2024-10-15 Maximilian Fürst , Denis Kochan , Ioachim-Gheorghe Dusa , Cosimo Gorini , Klaus Richter

We show that (2+1) dimensional noncommutative Dirac oscillator in an external magnetic field is mapped onto the same but with reduced angular frequency in absence of magnetic field. We construct the relativistic Landau levels by solving…

High Energy Physics - Theory · Physics 2018-09-14 Bhabani Prasad Mandal , Sumit Kumar Rai

In this contribution we study the Landau levels arising within the relativistic quantum dynamics of a neutral particle which possesses a permanent magnetic dipole moment interacting with an external electric field. We consider the…

Quantum Physics · Physics 2015-05-13 K. Bakke , C. Furtado

We study a relativistic spin-1/2 fermion subjected to a Dirac oscillator coupling and a constant magnetic field. An interplay between opposed chirality interactions culminates in the appearance of a relativistic quantum phase transition,…

Quantum Physics · Physics 2009-11-13 A. Bermudez , M. A. Martin-Delgado , A. Luis

Neutron-star magnetospheres are structured by very intense magnetic fields extending from 100 to 10 5 km traveled by very energetic electrons and positrons with Lorentz factors up to $\sim$ 10 7. In this context, particles are forced to…

High Energy Astrophysical Phenomena · Physics 2017-04-12 Guillaume Voisin , Silvano Bonazzola , Fabrice Mottez

We show that 2+1 dimensional Dirac oscillators in an external magnetic field is mapped onto the same with reduced angular frequency in absence of magnetic field. This can be used to study the atomic transitions in a radiation field.…

High Energy Physics - Theory · Physics 2010-01-26 Bhabani Prasad Mandal , Shweta Verma

In two-dimensional Dirac semimetals, massless Dirac fermions can form a series of Efimov-like quasibound states in an attractive Coulomb potential. In an applied magnetic field, these quasibound states can become bound states around the…

Mesoscale and Nanoscale Physics · Physics 2018-07-19 Mingyuan Sun

We uncover a remarkable quantum scattering phenomenon in two-dimensional Dirac material systems where the manifestations of both classically integrable and chaotic dynamics emerge simultaneously and are electrically controllable. The…

Quantum Physics · Physics 2018-03-28 Hong-Ya Xu , Guang-Lei Wang , Liang Huang , Ying-Cheng Lai

We analyze condition of orthogonality between optical Schrodinger cat-like-states constructed as superposition of two coherent states. We show that the orthogonality condition leads to quantization of values of a naturally emerging…

Quantum Physics · Physics 2016-06-22 Ludmila Praxmeyer

The generation of entangled states and their degree of entanglement is studied ab initio in a relativistic formulation for the case of two interacting spin-1/2 charged particles. In the realm of quantum electrodynamics we derive the…

Quantum Physics · Physics 2007-05-23 Jiannis Pachos , Enrique Solano

Recently, using conditioning approaches on the high-harmonic generation process induced by intense laser-atom interactions, we have developed a new method for the generation of optical Schr\"odinger cat states (M. Lewenstein et al.,…

Considering the parity symmetry related to the Dirac equation, the interplay between energy localization and the temporal evolution of parity-defined quantum superpositions is investigated for fermions in a magnetic field. The unitary…

Quantum Physics · Physics 2023-04-07 C. F. Silva , A. E. Bernardini

The phenomenon of spin-dependent quantum scattering in two-dimensional (2D) pseudospin-1/2 Dirac materials leading to a relativistic quantum chimera was recently uncovered. We investigate spin-dependent Dirac electron optics in 2D…

Mesoscale and Nanoscale Physics · Physics 2024-08-23 Li-Li Ye , Chen-Di Han , Ying-Cheng Lai

We consider Dirac equations on even dimensional Lorentzian manifolds of bounded geometry with a spin structure. For the associated free quantum field theory, we construct pure Hadamard states using global pseudodifferential calculus on a…

Analysis of PDEs · Mathematics 2022-05-11 Christian Gérard , Theo Stoskopf

We generalize the Landau levels of two-dimensional Dirac fermions to three dimensions and above with the full rotational symmetry. Similarly to the two-dimensional case, there exists a branch of zero energy Landau levels of fractional…

Strongly Correlated Electrons · Physics 2012-03-02 Yi Li , Kenneth Intriligator , Yue Yu , Congjun Wu

In several recent papers on entanglement in relativistic quantum systems and relativistic Bell's inequalities, relativistic Bell-type two-particle states have been constructed in analogy to non-relativistic states. These constructions do…

Quantum Physics · Physics 2007-05-23 N. L. Harshman
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