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Optical quantum simulation of Abelian gauge field using cold atomic ensembles coupled with arrays of optical cavities

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Science China(Physics,Mechanics & Astronomy) 2014年第12期57卷 2259-2265页

作者： LIU Yi Min LIU Rong Wan Department of Physics Shaoguan University

A potentially practical scheme is proposed to realize optical quantum simulation of artificial Abelian gauge field in a scalable architecture consisting of cold atomic ensembles with optical *** the present model,the collective excitations of cold atomic ensembles can be converted to the bosonic modes within the low-excitation limit,where the structure of two-dimension(2D)square plaquette enables the polaritons to move like a charged particle subjected to an external magnetic *** find that the energy spectrum of this hybrid system exhibits a shape of Hofstadter *** work provides a different perspective to the quantum simulation of condensed matter and many-body physics in the context of cavity quantum *** experimental feasibility are justified using the existing techniques.

关键词： gauge field quantum information processing cavity array

Supersymmetric U(1) gauge field Theory with Massive gauge field

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Communications in Theoretical Physics 2002年第4期37卷 427-430页

作者： WUNing InstituteofHighEnergyPhysics P.O.Box918－1theChineseAnademyofSciencesBeijing100039China

A new mechanism to introduce the mass of gauge field in supersymmetric gauge theory is discussed. The model has the strict local gauge symmetry and supersymmetry. Because we introduce two vector superfields simulta... 详细信息

关键词： supersymmetry gauge symmetry gauge field mass

Theoretical Maxwell's Equations, gauge field and Their Universality Based on One Conservation Law

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Journal of Southwest Jiaotong University(English Edition) 2005年第2期13卷 167-176页

作者：柳长茂 School of Science Southwest Jiaotong University Chengdu 610031 China

The notion of the inner product of vectors is extended to tensors of different orders, which may replace the vector product usually. The essences of the differential and the codiffcrential forms are pointed out： they represent the tangent surface and the normal surface fluxes of a tensor, reslpetivcly. The definitions of the divergence and the curl of a 2D surface flux of a tensor arc obtained. Maxwell＇s equations, namely, the constraction law of field, which were usually established based on two conservation laws of electric charge and imaginary magnetic charge, are derived by the author only by using one conservation law （ mass or fluid flux quantity and so on） and the feature of central field （or its composition）. By the feature of central field （or its composition）, the curl of 2D flux is zero. Both universality of gauge field and the difficulty of magnetic monopole theory （ a magnetic monopole has no effect on electric current just like a couple hasing no effect on the sum of forces） axe presented： magnetic monopole has no the feature of magnet. Finally it is pointed out that the base of relation of mass and energy is already involved in Maxwell＇s equations.

关键词： Maxwell's equations Cud of the surface flux Divergence of the surface flux gauge field Magnetic monopole

Gravitational gauge Interactions of Dirac field

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Communications in Theoretical Physics 2004年第3期41卷 381-384页

作者： WUNing InstituteofHighEnergyPhysics P.O.Box918-1Beijing100039China

Gravitational interactions of Dirac field are studied in this paper. Based on gauge principle, quantum gauge theory of gravity, which is perturbatively renormalizable, is formulated in the Minkowski space-time. In quantum gauge theory of gravity, gravity is treated as a kind of fundamental interactions, which is transmitted by gravitational gauge field, and Dirac field couples to gravitational field through gravitational gauge covariant derivative. Based on this theory, we can easily explain gravitational phase effect, which has already been detected by COW experiment.

关键词： quantum gravity gauge field Dirac field

Non-relativistic Limit of Dirac Equations in Gravitational field and Quantum Effects of Gravity

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Communications in Theoretical Physics 2006年第3期45卷 452-456页

作者： WU Ning Institute of High Energy Physics P.O. Box 918-1 Beijing 100049 China

Based on unified theory of electromagnetic interactions and gravitational interactions, the non-relativistic limit of the equation of motion of a charged Dirac particle in gravitational field is studied. From the Schroedinger equation obtained from this non-relativistic limit, we can see that the classical Newtonian gravitational potential appears as a part of the potential in the Schroedinger equation, which can explain the gravitational phase effects found in COW experiments. And because of this Newtonian gravitational potential, a quantum particle in the earth＇s gravitational field may form a gravitationally bound quantized state, which has already been detected in experiments. Three different kinds of phase effects related to gravitational interactions are studied in this paper, and these phase effects should be observable in some astrophysical processes. Besides, there exists direct coupling between gravitomagnetic field and quantum spin, and radiation caused by this coupling can be used to directly determine the gravitomagnetic field on the surface of a star.

关键词： quantum gravity gauge field quantum effects of gravity

CONSTRUCTION OF QUANTUM field THEORY OF DISLOCATIONS BASED ON THE NON-RIEMANNIANPLASTICITY

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Acta Metallurgica Sinica(English Letters) 1998年第6期11卷 405-411页

作者： T.Hasebe Y.Imaida Doshisha Univ Kyoto Japan

A new microscopic approach was proposed, which bridges the order gap between the dislocation theory and the crystalline plasticity based on the quantum field theory of dislocations. The Ginzburg-Landau equation was derived rigorously from the quantized Hamiltonian for a crystal body containing a large number of dislocations, which gives the reaction-diffusion (RD) type differential equations. The RD equation describes periodic patterning shown in PSBs, etc.. relationship between the proposed theory and the concepts appeared in the non-Riemannian plasticity was extensively discussed by introducing the gauge field of dislocations. (Edited author abstract) 15 Refs.

关键词： crystalline plasticity field theory Non-Riemannian plasticity,dislocation theory gauge field

Interaction Between Massive and Massless Gravitons by Perturbing Topological field Theory

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Communications in Theoretical Physics 2012年第2期57卷 241-244页

作者： E.Koorambas 8A Chatzikosta 11521 AmpelokipiAthensGreece

We test the Wu gauge theory of gravity with massive gravitons in the perturbing topological field theory *** show that the computation of the correlation function between massive and massless gravitons is reported up to 4-loop and appears to be unaffected by radiative *** result ensures the stability of the linking number between massive and massless gravitons with respect to the local perturbation,a result with potential wider applications in cosmology.

关键词： gauge field quantum gravity dark matter and dark energy topological field theory

An Outline of the Grand Unified Theory of gauge fields

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Journal of Modern Physics 2023年第3期14卷 212-326页

作者： Bi Qiao Wuhan University of Technology Wuhan China

This paper attempts to propose a grand unified guiding principle of gauge fields from the mathematical and physical picture of fiber bundles: it is believed that our universe may have more fundamental interactions than the four fundamental interactions, and the gauge fields of these fundamental interactions are just a unified gauge potential on the fiber bundle manifold or the components connected to the bottom manifold, that is, our universe;these components can meet the transformation of gauge potential, and even can be transformed from a fundamental interaction gauge potential to another fundamental interaction gauge potential, and can be summarized into a unified equation, namely the expression of the generalized gauge equation, corresponding to the gauge transformation invariance;so gauge transformation invariance is a necessary condition to unify field theory, but quantization of field is not a necessary condition;the four (or more) fundamental interaction fields of the universe are unified into a universal gauge field defined by the connection of the principal fiber bundle on the cosmic base manifold.

关键词： gauge field Principal Fiber Bundle gauge Transformation Invariance Grand Unified Theory of Physics

Unified Theory of Fundamental Interactions

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Communications in Theoretical Physics 2003年第5期39卷 561-568页

作者： WUNing InstituteofHighEnergyPhysics P.O.Box918-1Beijing100039China

Based on local gauge invariance, four different kinds of fundamental interactions in nature are unified in a theory which has Gravitational gauge Group gauge symmetry. In this approach, gravitational field, like electromagnetic field, intermediate gauge field, and gluon field, is represented by gauge potential. Four kinds of fundamental interactions are formulated in the similar manner, and therefore can be unified in a direct or semi-direct product group. The model discussed in this paper is a renormalizable quantum model and can be regarded as an extension of the standard model to gravitational interactions, so it can be used to study quantum effects of gravitational interactions.

关键词： unified field theories gauge field quantum gravity