四维杂化弦

A FOUR-DIMENSIONAL HETEROTIC STRING

利用十维N-S玻色弦和四维费米弦杂化,我们给出了四维杂化弦.其内部规范对称群为[SU(2)]~6.它的基态包含有四维时空的超引力多重态及四维超杨-Mills规范多重态.四维杂化弦具有超对称、无快子态及洛仑兹不变等特性.

We constructed a new D=4 heterotic string, which combines the right-movers of the D=4 fermionic string with the left-movers of the D=10 N-S bosonic strings. Its gauge group is [SU(2)]~■. The massless ground state of the string consists of D=4 supergravity and superYang-Mills bosons. The new string theory is tachyon-free, Lorentz invariant and supersymmetric.