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**Vladimir DZHUNUSHALIEV ^{*}**

Deptartment of Physical and and Microelectronical Engineering,Kyrgyz-Russian Slavic University, Kievskaya Str. 44, 720021 Bishkek, Kyrgyz Republic

- *Corresponding Author:
- Vladimir DZHUNUSHALIEV 1

Deptartment of Physical and and Microelectronical Engineering

Kyrgyz-Russian Slavic University Kievskaya

Str. 44, 720021 Bishkek, Kyrgyz Republic

**E-mail:**[email protected]

**Received Date**: September 06, 2007; **Revised Date:** January 31, 2008

**Visit for more related articles at** Journal of Generalized Lie Theory and Applications

It is shown that the non-associative operators in a non-associative quantum theory are unobservables. The observable quantity may be presented only by the elements of some asso- ciative subalgebra. It is shown that the elements of the associative subalgebra are extended objects that can be similar to strings. It is assumed that the non-associative quantum eld theory can be applied to the quantization of strongly interacting elds. The method for obtaining eld equations in a non-associative case is given.

Non-associativity in physics is a very seldom visitor. In [1] the attempt was made to obtain a possible generalization of quantum mechanics on any numbers including non-associative numbers: octonions. In [2] the author applies non-associative algebras to physics. This book covers topics ranging from algebras of observables in quantum mechanics, to angular momentum and octo- nions, division algebras, triple-linear products and Yang - Baxter equations. The non-associative gauge theoretic reformulation of Einstein's general relativity theory is also discussed. In [3] one can nd the review of mathematical denitions and physical applications for the octonions. The modern applications of the non-associativity in physics are: in [4,5] it is shown that the require- ment that nite translations be associative leads to Dirac's monopole quantization condition; in [6,7] Dirac's operator and Maxwell's equations are derived in the algebra of split-octonions. In this paper we would like to show that the application of the non-associativity in quantum theory leads to the interesting fact: the appearance of extended particles which are similar to strings in string theory.

The observability of a physical quantity M in quantum mechanics means that it is presented as an operator with the following properties:

• The eigenvalues of the operator

(2.1)

gives us the possible spectrum of M values.

• The averaged value of the physical quantity is given as

(2.2)

• The values M from (2.1) and hMi from (2.2) are real numbers.

The same is valid for quantum eld theory with some complexications. Now we would like to show that the non-associativity does not allow us to find and M as real numbers. The proofs that and M are real numbers are well known in quantum mechanics. At the end of the proof that M is a real number we have

(2.3)

and immediately we see that M = M*. The crucial point here is that on the LHS of Eq. (2.3) we have the triple products like In the quantum nonassociative theory this product depends on the rearrangements of brackets and the LHS of Eq. (2.3) may thus be nonzero. The situation for the proof that the averaged value is a real number is similar.

The main result of this simple consideration is: *non-associative operators present unobservable
quantities*.

At the rst sight this statement destroys any attempt to give any physical sense to a non-
associative quantum theory. Nevertheless the outlet exists: if the non-associative algebra of
quantum eld operators has an *associative subalgebra* then these associative operators are *ob-
servables*. This observation leads to the remarkable result: the observables in a non-associative
quantum eld theory is a product of nonobservable quantities.

According to the previous remarks, let us consider an observable quantity φ in a hypothesized non-associative quantum eld theory

(3.1)

here x_{i} are the Minkowskian coordinates; is a non-associative algebra of quantum operators is an element of an associative subalgebra

Now we would like to consider the physical sense of Eq. (3.1). For simplicity we will consider the product of two non-associative operators

(3.2)

It is necessary to mention that the decomposition (3.2) is very similar to slave-boson decom-
position in t - J model of High-T_{c} superconductivity (for a review, see [8]) and spin-charge
separation in the non-Abelian gauge theories [9] - [11]. Let us consider the (anti)commutator

(3.3)

Using (±) associators (which are yet unknown)

(3.4)

(3.5)

(3.6)

(3.7)

we can calculate the RHS of Eq. (3.3)

(3.8)

Here and are some combinations of operators and real functions is an associative operator but probably is a real function of coordinates x_{i}. It is very important to emphasize that the object not decomposable, i.e. we can not observe its components because we have shown above that are unobservable quantities. We only can observe the whole object

Now we would like to compare this situation with the propagator of string in string theory. In string theory the propagator is a Veneziano amplitude that is the function of four coordinates (or four impulses in the momentum space). Comparing Eq. (3.8) with the calculation of a string propagator we can offer the idea that the RHS of (3.8) is the propagator of an extended object which can be a string if the is equal to the Veneziano amplitude. The big dierence between string in string theory and extended object in a non-associative quantum eld theory is that in the rst case the string coordinates are observable quantities but in the second case the inner structure of a non-associative extended object is unobservable.

In the approach to the quantization of strongly interacting elds presented above we assume
that any operator of strongly interacting fields can be presented as the product that is the
generalization of slave-boson decomposition in t - J model of High-T_{c} superconductivity [8]
and spin-charge separation in the non-Abelian gauge theories [9] - [11]. The non-associative
factors are distributed in the spacetime and should have dynamical equations dening such distribution. Thus the question arises: what kind of eld equations describe the dynamics of non-associative operators Our point of view is that the corresponding equations simply are the eld equations of the associative eld operators Then all derivatives can be calculated
for the non-associative operator and in the result we deduce the eld equations for the non-associative eld operators

Let us, for example, consider non-Abelian gauge theory. In this case we have the decomposi- tion (3.1) (which in nothing else but the generalization of spin-charge separation [9] - [11]). The eld equations are the Yang-Mills equations

(4.1)

here is the eld strength operator; is the operator of gauge eld; a = 1; 2; : : : ; n is the color index for SU(n) gauge eld; f^{abc} are the SU(n) struc-tural constants and u;v = 0; 1; 2; 3 are spacetime indices. The operator has the following decomposition

(4.2)

where i_{1}; i_{2}; : : : ; i_{n} are inner indexes similar to one in spin-charge separation [9] - [11]. Comparing
with the decomposition(3.1) the decomposition (4.2) is given at one point x_{n}. Inserting the decomposition (4.2) in the eld strength operator and afterwards in the Yang-Mills equations (4.1) we shall receive equations for the nonassociative operator φ(x).

To summarize we have shown that if a non-associative algebra of quantum eld operators has an associative subalgebra, then the operator of extended particles can be represented similarly to the string representation of elementary particles in string theory.

It is necessary to note that the decomposition (3.1) can be thought of as a variation of the idea about hidden variables in the theory of hidden parameters.

Author acknowledges D. Singleton for the invitation to do research at Fresno State University and the support of a CSU Fresno Provost Award Grant.

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