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We present a self-consistent calculation of the finite temperature effective potential for λφ 4 theory, using the composite operator effective potential in which an infinite series of the leading diagrams is summed up. Our calculation establishes the proper form of the leading correction to the perturbative one-loop effective potential.

- R Jackiw, V P Nair, So-Young Pi
- 2000

We propose a non-Abelian generalization of the Clebsch parameterization for a vector in three dimensions. The construction is based on a group-theoretical reduction of the Chern-Simons form on a symmetric space. The formalism is then used to give a canonical (symplectic) discussion of non-Abelian fluid mechanics, analogous to the way the Abelian Clebsch… (More)

- So-Young Pi
- 1997

Mass-gap calculations in three-dimensional gauge theories are discussed. Also we present a Chern–Simons-like mass-generating mechanism which preserves parity and is realized non-perturbatively.

- R Jackiw, So-Young Pi
- 1995

We discuss the recently devised one-loop gap equation for the magnetic mass of hot QCD. An alternative, and one would hope equivalent, gap equation is presented, which however shows no mass generation at the one-loop level.

- Gia Dvali, R Jackiw, So-Young Pi
- Physical review letters
- 2006

We show that in a large class of physically interesting systems the mass-generation phenomenon can be understood in terms of topological structures, without requiring a detailed knowledge of the underlying dynamics. This is first demonstrated by showing that Schwinger's mechanism for mass generation relies on topological structures of a two-dimensional… (More)

- R Jackiw, So-Young Pi
- 1992

These days, Franco Iachello is the eminent practitioner applying classical and finite groups to physics. In this he is following a tradition at Yale, established by the late Feza Gursey, and succeeding Gursey in the Gibbs chair; Gursey in turn, had Pauli as a mentor. Iachello's striking achievement has been to find an actual realization of arcane… (More)

Fermion-number fractionalization without breaking the time-reversal symmetry was recently demonstrated for a field theory in ͑2+1͒-dimensional space and time that describes the couplings between massive Dirac fermions, a complex-valued Higgs field carrying an axial gauge charge of 2, and a U͑1͒ axial gauge field. Charge fractionalization occurs whenever the… (More)

- Thomas Iadecola, David Campbell, +4 authors Silvia Viola Kusminskiy
- Physical review letters
- 2013

Controlling the properties of materials by driving them out of equilibrium is an exciting prospect that has only recently begun to be explored. In this Letter we give a striking theoretical example of such materials design: a tunable gap in monolayer graphene is generated by exciting a particular optical phonon. We show that the system reaches a steady… (More)

- R Jackiw, So-Young Pi
- 1998

We consider models in which nonrelativistic matter fields interact with gauge fields whose dynamics are governed by the Chern-Simons term. The relevant equations of motion are derived and reduced dimensionally in time or in space. Interesting solitonic equations emerge and their solutions are described. Finally, we consider a Chern-Simons term in… (More)

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