Results 171 to 180 of about 29,716 (213)

String Theory: Bosonic String

2021
What we have achieved so far is not entirely satisfactory: Supersymmetry (more precisely, the broader framework of supergravity) offers a partial solution to the weak-scale hierarchy problem. Partial refers to the fact that SUSY partners have not been discovered (yet?) and hence some fine-tuning is probably needed after all.
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Closed strings from open bosonic strings

Physical Review D, 1989
We show that closed strings can be incorporated into a bosonic open-string theory by a suitable enlargement of the open-string Fock space. We present an explicit construction of the states in this space in terms of open-string oscillators. The couplings between closed- and open-string states are those deduced from factorization over the closed-string ...
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Improved model of bosonic string

Physical Review D, 1987
A model of the bosonic string is presented in which 16 additional twisted scalar fields defined on the world sheet allow the tachyonic mass to vanish and scalar fields defined on the world sheet allow the tachyonic mass to vanish and the critical dimension to be lowered to d=10.
Balbinot R., Barletta A., Venturi G.
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Compactification of closed bosonic strings

Physical Review Letters, 1986
The boundary conditions of the first-quantized compactified closed bosonic string constrain the eigenvalues of the zero-mode operators. Requiring that internal symmetries result from compactification, we show that the simplest boundary conditions imply that the ``left'' and ``right'' lattices must be self-dual at the first-quantized level. The one-loop
, Raby, , Slansky
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The Bosonic String

1990
The starting point of dual string theories was the scattering amplitude proposed by Veneziano in 1968 for four neutral scalar particles. The (s,t) term of such an amplitude is given by the well-known Veneziano formula (1): $${\text{A(s,t) = }}\frac{{\Gamma ( - {\alpha _{\text{s}}}){\text{ }}{\mkern 1mu} \Gamma ( - {\alpha _{\text{t}}})}}{{\Gamma ( -
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BOSONIC STRING WITH TOPOLOGICAL TERM

Modern Physics Letters A, 1991
It is shown that in D = 3 space-time dimensions there exist a topological term for the bosonic strings. The corresponding constraints satisfy the same Virasoro algebra as the ordinary bosonic strings. These results are generalized for an arbitrary dimensional space-time if we have SO (1, 2) ⊗ O (D − 3) or SO (3) ⊗ O (1, D − 4) symmetry instead of SO ...
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The Quantized Bosonic String

2012
In this chapter the quantization of the bosonic string is discussed. This leads to the notion of a critical dimension (d= 26) in which the bosonic string can consistently propagate. Its discovery was of great importance for the further development of string theory.
Ralph Blumenhagen, Dieter Lüst, Stefan Theisen   +2 more
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Nonrelativistic Expansion of Closed Bosonic Strings

Physical Review Letters, 2022
Jelle Hartong, Emil Have
exaly  

Bosonic Strings

1988
Lars Brink, Marc Henneaux
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The bosonic string

2023
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