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Featured researches published by C. H. Oh.


Journal of Mathematical Physics | 1988

The propagator in the generalized Aharonov–Bohm effect

C. H. Oh; Chopin Soo; C. H. Lai

The nonrelativistic propagator is derived by formulating the generalized Aharonov–Bohm effect, valid for any gauge group in a general multiply connected manifold, as a gauge artifact in the universal covering space. The loop phase factors and the free homotopy propagators arise naturally. An explicit expression for the propagator when there are two solenoids present is given.


Physics Letters B | 1979

Periodic solutions of the Yang—Mills field equations

C. H. Oh; Rosy Teh

Abstract Exact periodic solutions of the classical SU(2) Yang—Mills equations in Minkowski space-time are constructed. These solutions can be interpreted, respectively, as non-abelian plane waves and spherical waves. The corresponding non-self-dual static solutions are also exhibited, some of which possess vanishing energy-momentum density.


Physics Letters B | 1981

Low energy static Yang-Mills configurations

C. H. Oh; Rosy Teh; W. K. Koo

Abstract Non-singular static solutions for the SU(2) Yang-Mills field equations in the presence of external sources are presented. These solutions possess energies less than those of the magnetic dipole solutions, and can in fact have vanishingly small energies.


Journal of Mathematical Physics | 1985

Nonabelian progressive waves

C. H. Oh; Rosy Teh

We present two families of nonabelian wave solutions of the Yang–Mills field equations, some of the previous known solutions occur as special cases of our solutions.


Classical and Quantum Gravity | 1987

On the consistency condition of the Kaluza-Klein ansatz

C. H. Oh; Kuldip Singh; Choy Heng Lai

The authors show how the consistency problem of the Kaluza-Klein ansatz can be resolved when the extra dimension space is identified as a coset space.


Journal of Mathematical Physics | 1984

Bifurcation and the magnetic multipole solutions of the Yang–Mills equations with sources

C. H. Oh

It is shown that any Sikivie–Weiss‐type magnetic multipole solution possesses a bifurcation point and it has the corresponding abelian Coulomb solution as its partner branch, which is unstable. The magnetic multipole solution is the stable branch.


Journal of Mathematical Physics | 1981

Linearly superposable and finite‐action classical Yang–Mills fields

C. H. Oh; Rosy Teh

We show that in the Minkowski space, a self‐dual gauge field can be linearly superposed with either another self‐dual gauge field or a non‐self‐dual gauge field to give a new solution of the Yang–Mills equation. From these new solutions, Euclidean solutions are constructed. Some of these new solutions are valid in any dimensions of space–time.


Journal of Mathematical Physics | 1988

Analytic solutions of the SU(3) Yang–Mills field equations with external sources

C. H. Oh; Rajesh R. Parwani

For external sources specified in the radial gauge frame, it is demonstrated how the SU(3) Yang–Mills field configuration can be constructed from the SU(2) solutions. This is explicitly illustrated for the type‐II solutions that exhibit the bifurcation phenomenon.


Physical Review D | 1982

Non-Abelian Coulomb solution and the type-II solution of the Yang-Mills field equations with sources

C. H. Oh; Rosy Teh; W. K. Koo


Physical Review D | 1981

Static Yang-Mills fields in the presence of external sources

C. H. Oh; Rosy Teh; W. K. Koo

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Rosy Teh

International Centre for Theoretical Physics

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Choy Heng Lai

National University of Singapore

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Chopin Soo

National Cheng Kung University

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Rajesh R. Parwani

National University of Singapore

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C. H. Lai

Massachusetts Institute of Technology

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A.H. Chan

National University of Singapore

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Danny Yap

National University of Singapore

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Kuldip Singh

National University of Singapore

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Z.Y. Law

National University of Singapore

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S.N. Chow

Michigan State University

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