Imperial College London

Amihay Hanany

Faculty of Natural SciencesDepartment of Physics

Professor of Theoretical Physics
 
 
 
//

Contact

 

+44 (0)20 7594 3634a.hanany

 
 
//

Location

 

611Huxley BuildingSouth Kensington Campus

//

Summary

 

Publications

Publication Type
Year
to

225 results found

Bergman O, Hanany A, Karch A, Kol Bet al., 1999, Branes and supersymmetry breaking in three dimensional gauge theories, Journal of High Energy Physics, Vol: 1999, Pages: 036-036

Journal article

Hanany A, Zaffaroni A, 1999, Issues on orientifolds:: on the brane construction of gauge theories with SO(2<i>n</i>) global symmetry, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479

Journal article

Feng B, Hanany A, He Y-H, 1999, The <i>Z</i><sub><i>k</i></sub> × <i>D</i><sub><i>k</i>′</sub> brane box model, Journal of High Energy Physics, Vol: 1999, Pages: 011-011

Journal article

Erlich J, Hanany A, Naqvi A, 1999, Marginal deformations from branes, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479

Journal article

DeWolfe O, Hanany A, Iqbal A, Katz Eet al., 1999, Five-branes, seven-branes and five-dimensional <i>E<sub>n</sub></i> field theories, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479

Journal article

Hanany A, He YH, 1999, Non-abelian finite gauge theories, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479

Journal article

Feng B, Hanany A, He YH, 1999, The <i>Z<sub>k</sub> x D<sub>k</sub>'</i> brane box model, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479

Journal article

Erlich J, Hanany A, Naqvi A, 1999, Marginal deformations from branes, Journal of High Energy Physics, Vol: 3, ISSN: 1029-8479

We study brane configurations for four dimensional N=l supersymmetric gauge theories with quartic superpotentials which flow in the infrared to manifolds of interacting super conformal fixed points. We enumerate finite N=2 theories, from which a large class of marginal N=1 theories descend. We give the brane descriptions of these theories in Type IIA and Type IIB string theory. The Type IIB descriptions are in terms of D3 branes in orientifold and generalized conifold backgrounds. We calculate the Weyl and Euler anomalies in these theories, and find that they are equal in elliptic models and unequal in a large class of finite N=2 and marginal N=1 non-elliptic theories.

Journal article

Hanany A, Kol B, Rajaraman A, 1999, Orientifold points in M theory, Journal of High Energy Physics, Vol: 3, ISSN: 1029-8479

We identify the lift to M theory of the four types of orientifold points, and show that they involve a chiral fermion on an orbifold fixed circle. From this lift, we compute the number of normalizable ground states for the SO(7V) and Sp(7V) supersymmetric quantum mechanics with sixteen supercharges. The results agree with known results obtained by the mass deformation method. The mass of the orientifold is identified with the Casimir energy.

Journal article

Hanany A, Zaffaroni A, 1999, Issues on orientifolds: On the brane construction of gauge theories with SO(2n) global symmetry, Journal of High Energy Physics, Vol: 3, ISSN: 1029-8479

We discuss issues related to orientifolds and the brane realization for gauge theories with orthogonal and symplectic groups. We specifically discuss the case of theories with (hidden) global SO(2n) symmetry, from three to six dimensions. We analyze mirror symmetry for three dimensional N=4 gauge theories, Brane Box Models and six-dimensional gauge theories. We also discuss the issue of T-duality for Dn space-time singularities. Stuck D branes on ON0 planes play an interesting role.

Journal article

Feng B, Hanany A, He YH, 1999, The Z<inf>k</inf> × D<inf>k′</inf> brane box model, Journal of High Energy Physics, Vol: 3, ISSN: 1029-8479

An example of a non-abelian Brane Box Model, namely one corresponding to a Zk × Dk′ orbifold singularity of C3, is constructed. Its self-consistency and hence equivalence to geometrical methods are subsequently shown. It is demonstrated how a group-theoretic twist of the non-abelian group circumvents the problem of inconsistency that arise from naïve attempts at the construction.

Journal article

Hanany A, Zaffaroni A, 1999, Monopoles in string theory, Journal of High Energy Physics, Vol: 3, ISSN: 1029-8479

A realization of En+1 monopoles in string theory is given. The NS five brane stuck to an Orientifold eight plane is identified as the 't Hooft-Polyakov monopole. Correspondingly, the moduli space of many such NS branes is identified with the moduli space of SU(2) monopoles. These monopoles transform in the spinor representation of an SO(2n) gauge group when n D8 branes are stacked upon the orientifold plane. This leads to a realization of En+1 monopole moduli spaces. Charge conservation leads to a dynamical effect which does not allow the NS branes to leave the orientifold plane. This suggests that the monopole moduli space is smooth for n < 8. Odd n < 8 obeys a similar condition. Using a chain of dualities, we also connect our system to an heterotic background with Kaluza-Klein monopoles.

Journal article

Dewolfe O, Hanany A, Iqbal A, Katz Eet al., 1999, Five-branes, seven-branes and five-dimensional E<inf>n</inf> field theories, Journal of High Energy Physics, Vol: 3, ISSN: 1029-8479

We generalize the (p, q) 5-brane web construction of five-dimensional field theories by introducing (p, q) 7-branes, and apply this construction to theories with a one-dimensional Coulomb branch. The 7-branes render the exceptional global symmetry of these theories manifest. Additionally, 7-branes allow the construction of all En theories up to n = 8, previously not possible in 5-brane configurations. The exceptional global symmetry in the field theory is a subalgebra of an affine symmetry on the 7-branes, which is necessary for the existence of the system. We explicitly determine the quantum numbers of the BPS states of all En theories using two simple geometrical constraints.

Journal article

Hanany A, He YH, 1999, Non-abelian finite gauge theories, Journal of High Energy Physics, Vol: 3, ISSN: 1029-8479

We study orbifolds of N = 4 U(n) super-Yang-Mills theory given by discrete subgroups of SU(2) and SU(3). We have reached many interesting observations that have graph-theoretic interpretations. For the subgroups of SU(2), we have shown how the matter content agrees with current quiver theories and have offered a possible explanation. In the case of 577(3) we have constructed a catalogue of candidates for finite (chiral) N = 1 theories, giving the gauge group and matter content. Finally, we conjecture a McKay-type correspondence for Gorenstein singularities in dimension 3 with modular invariants of WZW conformal models. This implies a connection between a class of finite N = 1 supersymmetric gauge theories in four dimensions and the classification of affine SU(3) modular invariant partition functions in two dimensions.

Journal article

Aharony O, Hanany A, Kol B, 1998, Webs of (p,q) 5-branes, five dimensional field theories and grid diagrams, Journal of High Energy Physics, Vol: 2, ISSN: 1029-8479

We continue to study 5d N = 1 supersymmetric field theories and their compactifications on a circle through brane configurations. We develop a model, which we call (p, q) Webs, which enables simple geometrical computations to reproduce the known results, and facilitates further study. The physical concepts of field theory are transparent in this picture, offering an interpretation for global symmetries, local symmetries, the effective (running) coupling, the Coulomb and Higgs branches, the monopole tensions, and the mass of BPS particles. A rule for the dimension of the Coulomb branch is found by introducing Grid Diagrams. Some known classifications of field theories are reproduced. In addition to the study of the vacuum manifold we develop methods to determine the BPS spectrum. Some states, such as quarks, correspond to instantons inside the 5-brane which we call strips. In general, these may not be identified with (p, q) strings. We describe how a strip can bend out of a 5-brane, becoming a string. A general BPS state corresponds to a Web of strings and strips. For special values of the string coupling a few strips can combine and leave the 5-brane as a string.

Journal article

Hanany A, Zaffaroni A, 1998, Branes and six-dimensional supersymmetric theories, NUCLEAR PHYSICS B, Vol: 529, Pages: 180-206, ISSN: 0550-3213

Journal article

Brunner I, Hanany A, Karch A, Lust Det al., 1998, Brane dynamics and chiral non-chiral transitions, NUCLEAR PHYSICS B, Vol: 528, Pages: 197-217, ISSN: 0550-3213

Journal article

Hanany A, Strassler MJ, Uranga AM, 1998, Finite theories and marginal operators on the brane, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479

Journal article

Hanany A, Lifschytz G, 1998, M(atrix) theory on T<SUP>6</SUP> and a m(atrix) theory description of KK monopoles, NUCLEAR PHYSICS B, Vol: 519, Pages: 195-213, ISSN: 0550-3213

Journal article

Hanany A, Zaffaroni A, 1998, On the realization of chiral four-dimensional gauge theories using branes, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479

Journal article

Hanany A, Uranga AM, 1998, Brane boxes and branes on singularities, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479

Journal article

Hanany A, Hori K, 1998, Branes and N=2 theories in two dimensions, NUCLEAR PHYSICS B, Vol: 513, Pages: 119-174, ISSN: 0550-3213

Journal article

Hanany A, Strassler MJ, Zaffaroni A, 1998, Confinement and strings in MQCD, NUCLEAR PHYSICS B, Vol: 513, Pages: 87-118, ISSN: 0550-3213

Journal article

Hanany A, Zaffaroni A, 1998, Chiral symmetry from type IIA branes, NUCLEAR PHYSICS B, Vol: 509, Pages: 145-168, ISSN: 0550-3213

Journal article

Hanany A, Zaffaroni A, 1998, On the realization of chiral four-dimensional gauge theories using branes, Journal of High Energy Physics, Vol: 2, ISSN: 1029-8479

We consider a general brane construction for realizing chiral four-dimensional gauge theories. The advantage of the construction is the simplicity and the possibility of realizing a large class of models existing in the literature. We start the study of these models by determining the matter content and the superpotential which naturally arise in the brane construction.

Journal article

Hanany A, Uranga AM, 1998, Brane boxes and branes on singularities, Journal of High Energy Physics, Vol: 2, ISSN: 1029-8479

Brane Box Models of intersecting NS and D5 branes are mapped to D3 branes at C3/T singularities and viceversa, in a setup which gives rise to N = I supersymmetric gauge theories in four dimensions. The Brane Box Models are constructed on a two-torus. The map is interpreted as T-duality along the two directions of the torus. Some Brane Box Models contain NS fivebranes winding around (p, q) cycles in the torus, and our method provides the geometric T-dual to such objects. An amusing aspect of the mapping is that T-dual configurations are calculated using D = 4 N = I field theory data. The mapping to the singularity picture allows the geometrical interpretation of all the marginal couplings in finite field theories. This identification is further confirmed using the AdS/CFT correspondence for orbifold theories. The AdS massless fields coupling to the marginal operators in the boundary appear as stringy twisted sectors of S5/T. The mapping for theories which are non-finite requires the introduction of fractional D3 branes in the singularity picture.

Journal article

Hanany A, Strassler MJ, Uranga AM, 1998, Finite theories and marginal operators on the brane, Journal of High Energy Physics, Vol: 2, ISSN: 1029-8479

We show how to use D and NS fivebranes in Type IIB superstring theory to construct large classes of finite N = 1 supersymmetric four dimensional field theories. In this construction, the beta functions of the theories are directly related to the bending of branes; in finite theories the branes are not bent, and vice versa. Many of these theories have multiple dimensionless couplings. A group of duality transformations acts on the space of dimensionless couplings; for a large subclass of models, this group always includes an overall SL(2, ℤ) invariance. In addition, we find even larger classes of theories which, although not finite, also have one or more marginal operators.

Journal article

Aharony O, Hanany A, Kol B, 1998, Webs of (p,q) 5-branes, five dimensional field theories and grid diagrams, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479

Journal article

Brodie JH, Hanany A, 1997, Type IIA superstrings, chiral symmetry, and N=1 4D gauge theory dualities, NUCLEAR PHYSICS B, Vol: 506, Pages: 157-182, ISSN: 0550-3213

Journal article

Aharony O, Hanany A, 1997, Branes, superpotentials and superconformal fixed points, NUCLEAR PHYSICS B, Vol: 504, Pages: 239-271, ISSN: 0550-3213

Journal article

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

Request URL: http://wlsprd.imperial.ac.uk:80/respub/WEB-INF/jsp/search-html.jsp Request URI: /respub/WEB-INF/jsp/search-html.jsp Query String: id=00164299&limit=30&person=true&page=7&respub-action=search.html