Non-Commutative Field Theory  

In General > s.a. non-commutative geometry; energy-momentum; lattice field theory; types of quantum field theories.
* Idea: In principle, quantize the manifold underlying a field theory (spacetime or space) by replacing it with a non-commutative matrix model or a "fuzzy manifold"; In practice, replace products of fields in the action / Hamiltonian by star products, then integrate as usual.
* Motivation: Non-commutative spaces naturally arise in string theory with a constant background magnetic field in the presence of D-branes; Regularize theories while preserving their symmetries and topological features, and altogether overcoming the fermion-doubling problem.
* Particle physics: A nice result is that, once fermions are fixed, there is no arbitrariness in the Higgs sector.
* Result: Free -Minkowski space field theory is equivalent to a relativistically invariant, non local, free field theory on Minkowski spacetime.
> Related topics: see anomalies; boundaries in field theory; CPT; fock space; renormalization; twistors.

Types of Theories > s.a. gauge theories [including standard model]; gravity; GUTs; non-commutative physics; supersymmetry and susy theories.
* Different frameworks: Can use different star products, for example the Moyal and Wick-Voros (or normally ordered) ones.
@ Scalar fields: Gubser & Sondhi NPB(01) [phase structure]; Moffat PLB(01)ht/00; Habara PTP(02)ht/01; Bietenholz et al ht/03-in, APPB(03)ht-in [4, numerical]; Bertolami & Guisado PRD(03) [coupled to gravity]; Daszkiewicz et al IJMPA(05) [and DRS]; Steinacker JHEP(05) [non-perturbative], ht/05-in [eigenvalue distribution]; Grosse & Steinacker JHEP(06)ht [4D self-dual 3]; Panero JHEP(07) [numerical]; Freidel et al a0706 [free scalar in -Minkowski]; Galluccio et al a0807, a0807 [with Wick-Voros product].
@ Fermion fields: Gracia-Bondía et al PLB(98)ht/97, Balachandran et al MPLA(00) [fermion doubling]; Bourouaine & Benslama MPLA(05)ht [Dirac, and gravity], JPA(05) [in electromagnetic field].
@ String theory: Seiberg & Witten JHEP(99)ht; Witten CQG(00); Tezuka ht/01-MsSc; Barbosa JHEP(03)ht [interpretation]; Wang ht/05 [free, bosonic]; > s.a. String Field Theory.
@ Non-commutative target space: Balachandran et al a0706 [scalar field].
@ Other: Jack & Jones PLB(01) [uv finite]; > s.a. 3D quantum gravity; Born-Infeld, Gross-Neveu, Wess-Zumino Theory.
> Related topics: see dirac procedure; spin-statistics.

References > s.a. path integrals.
@ Intros, reviews: Kerner mp/00-in; Douglas & Nekrasov RMP(01)ht; Szabo PRP(03)ht/01-ln; Ydri ht/01-PhD; Gracia-Bondía AdP(02)ht; Dito & Sternheimer in(02)m.QA [history]; Girotti ht/03-ln; Schaposnik ht/04-ln [including solitons and instantons]; Wulkenhaar JGP(06); Bal & Qureshi ht/06-in, Akofor et al IJMPA(08)-a0803-in [fuzzy physics and quantum field theory on Groenwald-Moyal plane]; Doplicher ht/06-ln.
@ Unitarity: Gomis & Mehen NPB(00)ht; Bahns et al PLB(02)ht.
@ Hamiltonian, symplectic: Neves et al JPA(04)ht/03, PRD(04)ht/03; Vassilevich ht/04; Abreu et al IJMPA(06)ht/04; > s.a. non-commutative physics.
@ And causality: Greenberg PRD(06)ht/05, Soloviev PRD(08)-a0802 [failure of microcausality]; Haque & Joglekar JPA(08)ht/07.
@ Properties of quantum field theories: Álvarez-Gaumé & Vázquez-Mozo NPB(03)ht; Bahns FdP(04)ht-in [UV]; Smailagic & Spallucci JPA(04) [Lorentz, unitarity, UV]; Kobayashi & Sasaki IJMPA(05) [susy interpretation]; Panero ht/06-in [rev]; Chaichian et al ht/06 [theorems, rev]; [failure of microcausality]; Gangopadhyay a0806-PhD.
@ Other formal aspects: Savvidy in(03)ht/02 [new type]; Bozkaya et al EPJC(03)ht/02 [amplitudes and path integrals]; Namsrai IJTP(03); Chaichian et al ht/04 [Wightman functions]; Paschke & Verch CQG(04)gq [covariant quantum field theory over spectral geometries]; Mandanici & Marcianò JHEP(04) [Heisenberg evolution]; Bahns et al PRD(05) [Wick products]; Gonera et al PLB(05)ht [deformed Poincaré symmetry]; Govindarajan et al MPLA(06) [regularization]; Freidel et al PLB(07)ht [equivalence to non-local field theory on Minkowski].
@ Phenomenology: Mariz et al PRD(07) [dispersion relations].
@ Spacetime symmetries: Iorio & Sykora IJMPA(02)ht/01 [gauge theories]; Szabo CQG(06)ht [and strings], ht/07-ln [and renormalization].
@ Special backgrounds: Nakayama & Shimono PTP(04)ht [S4]; Nazaryan & Carlson PRD(05) [non-commutative superspace].
@ Quantization: Amorim & Barcelos-Neto JPA(01)ht, Acatrinei PRD(03)ht/02 [scalar]; Carmona et al JHEP(03); Abe IJMPA(07)ht/06 [nc quantization]; Chaichian et al a0706 [space of test functions]; Daszkiewicz et al PRD(08)-a0708.
@ Perturbative effects: Minwalla et al JHEP(00)ht/99; Kossow ht/06.
@ At finite temperature: Strelchenko & Vassilevich PRD(07)-a0705; Fosco & Silva JHEP-a0710 [2+1 scalar].
@ Braided quantum field theory: Oeckl CMP(01)ht/99; Sasai & Sasakura a0704 [Hopf algebra symmetries and Ward-Takahashi identities].
@ Related topics: Grosse et al IJTP(96); Kempf JMP(97) [non-zero minimal uncertainties]; Cho et al IJMPD(00)ht/99 [propagator]; Ydri PRD(01) [as a regulator]; Chaichian et al NPB(01)ht [non-trivial topology]; Amelino-Camelia et al ht/02-in; Kowalski-Glikman & Nowak PLB(02)ht, IJMPD(03)ht/02 [and DSR]; Barcelos-Neto ht/02 [in curved spacetime]; Pinzul & Stern NPB(05)ht [procedure for corrections]; Soloviev TMP(06) [axiomatic]; Bu et al PRD(06) [from twisted Fock space]; Aschieri et al a0708 [from Drinfeld twist].
@ Particle physics: Chamseddine & Fröhlich PRD(94)ht/93 [SO(10)], PLB(93)ht [Higgs and top masses], ht/93-in [rev]; Connes CMP(96)ht; Schücker ht/97-in; Stephan ht/06 [massive neutrinos].


Main pageAbbreviationsJournalsCommentsOther sitesAcknowledgements
Send feedback and suggestions to bombelli at olemiss.edu – Modified 18 jul 2008