We develop a systematic method to construct the boundary states in the coset conformal field theory G/H . Based on the relation of the G/H theory with the tensor product theory G×H , we give a map from the boundary states of G×H to those of G/H . Our map provides a large class of boundary states in coset theories, which include those not factorizable into the G and the H sectors. The action of ...

Based on the assumption that an S4 flavor symmetry is embedded into SU(3), a lepton mass matrix model is investigated. A Froggatt-Nielsen type model is assumed, and the flavor structures of the masses and mixing are caused by VEVs of SU(2)L-singlet scalars φu and φd which are nonets (8+1) of the SU(3) flavor symmetry, and which are broken into 2+3+3 and 1 of S4. If we require the invariance und...

Recent work on a lepton mass matrix model based on an SU(3) flavor symmetry which is broken into S4 is reviewed. The flavor structures of the masses and mixing are caused by VEVs of SU(2)L-singlet scalars φ which are nonets (8+1) of the SU(3) flavor symmetry, and which are broken into 2 + 3 + 3 and 1 of S4. If we require the invariance under the transformation (φ, φ) → (−φ(8),+φ(1)) for the sup...

This paper reports on the design, fabrication and demonstration of a polydimethylsiloxane (PDMS)/SU-8 inkjet dispenser with the following novel features: (1) the use of low-cost fabrication process and bio-compatible materials, (2) the use of hydrophobic SU-8 micro-nozzles to limit satellite droplet formation, (3) a modular device design that allows for the reuse of the external actuator, (4) t...