Non-spherical bags.

There are no solutions of the Dirac equation confined to a rectilinear bag with simple MIT bag boundary conditions [1]. A study with spheroidal deformation [2] also produced this result. However, that study also demonstrated that the addition of a chiral phase on the boundary allowed for sensible solutions. We shall present the results of extending this notion to the rectilinear case.

[1] A. Chodos, R. L. Jaffe, K. Johnson, C. B. Thorn, and V. F. Weisskopf, Phys. Rev. D9, (1974) 3417.
[2] Bruce H. J. McKellar, G. J. Stephenson Jr. and Mark J. Thomson, J. Phys. A: Math. Gen. 26, (1993) 3649.