Semiclassical quantization of rotating superstring in AdS(5) x S**5
Abstrak
Motivated by recent proposals in hep-th/0202021 and hep-th/0204051 we develop semiclassical quantization of superstring in AdS5 × S5. We start with a classical solution describing string rotating in AdS5 and boosted along large circle of S5. The energy of the classical solution E is a function of the spin S and the momentum J (R-charge) which interpolates between the limiting cases S = 0 and J = 0 considered previously. We derive the corresponding quadratic fluctuation action for bosonic and fermionic fields from the GS string action and compute the string 1-loop (large √λ = R2/α') correction to the classical energy spectrum in the (S,J) sector. We find that the 1-loop correction to the ground-state energy does not cancel for S ≠ 0. For large S it scales as ln S, i.e. as the classical term, with no higher powers of ln S appearing. This supports the conjecture made in hep-th/0204051 that the classical E−S = aln S scaling can be interpolated to weak coupling to reproduce the corresponding operator anomalous dimension behaviour in gauge theory.
Topik & Kata Kunci
Penulis (2)
S. Frolov
A. Tseytlin
Akses Cepat
- Tahun Terbit
- 2002
- Bahasa
- en
- Total Sitasi
- 734×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1088/1126-6708/2002/06/007
- Akses
- Open Access ✓