BPS Lumps and Their Intersections in N = 2 SUSY Nonlinear Sigma Models

نویسندگان

  • Masashi Naganuma
  • Muneto Nitta
  • Norisuke Sakai
چکیده

BPS lumps in N = 2 SUSY nonlinear sigma models on hyper-Kähler manifolds in four dimensions are studied. We present new lump solutions with various kinds of topological charges. New BPS equations and a new BPS bound, expressed by the three complex structures on hyper-Kähler manifolds, are found. We show that any states satisfying these BPS equations preserve 1/8 (1/4) SUSY of N = 2 SUSY nonlinear sigma models with (without) a potential term. These BPS states include nonparallel multi-(Q-)lumps. e-mail address: [email protected] e-mail address: [email protected] ‡ Address after September 1, Department of Physics, West Lafayette, IN 47907-1396, USA. e-mail address: [email protected]

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

BPS Walls and Junctions in SUSY Nonlinear Sigma Models

BPS walls and junctions are studied in N = 1 SUSY nonlinear sigma models in four spacetime dimensions. New BPS junction solutions connecting N discrete vacua are found for nonlinear sigma models with several chiral scalar superfields. A nonlinear sigma model with a single chiral scalar superfield is also found which has a moduli space of the topology of S and admits BPS walls and junctions conn...

متن کامل

Manifest Supersymmetry for BPS Walls in N = 2 Nonlinear Sigma Models

BPS equations and wall solutions are studied keeping (part of) supersymmetry (SUSY) manifest. Using N = 1 superfields, massive hyperKähler quotient is introduced to obtain massive N = 2 (8 SUSY) nonlinear sigma models in four dimensions with T CP n target manifold, which yield BPS wall solutions for the n = 1 case. We also describe massive hyper-Kähler quotient of T CP n by using the harmonic s...

متن کامل

Sigma-model soliton intersections from exceptional calibrations

A first-order ‘BPS’ equation is obtained for 1/8 supersymmetric intersections of soliton-membranes (lumps) of supersymmetric (4+1)-dimensional massless sigma models, and a special non-singular solution is found that preserves 1/4 supersymmetry. For 4-dimensional hyper-Kähler target spaces (HK4) the BPS equation is shown to be the low-energy limit of the equation for a Cayley-calibrated 4-surfac...

متن کامل

Domain Walls with Massive Hypermultiplets

Domain walls play a central role in a subject of recent interest, the braneworld scenario. In particular, BPS domain walls are investigated in detail in D = 4, N = 1 SUSY theories. We should consider hypermultiplets to realize D = 4, N = 1 SUSY theory on the world-volume. In order to have a potential with discrete degenerate vacua, they must have gauge interaction, or nonlinearity of kinetic te...

متن کامل

Auxiliary Field Methods in Supersymmetric Nonlinear Sigma Models

Auxiliary field methods in D = 2 (or 3), N = 2 supersymmetric (SUSY) nonlinear sigma models (NLσMs) are studied. For these models auxiliary fields as Lagrange multipliers belong to a vector or a chiral superfield, which gives a Kähler quotient of complexified gauge group or a holomorphic constraint on it, respectively. Using these, NLσMs on all Hermitian symmetric spaces were formulated previou...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2001