Influence of the Gravitational Field of a Null String Domain on the Dynamics of a Test Null String

The motion of a test null string “inside” an axially symmetric domain of null strings which has a layered structure and radially changes its size has been investigated. It is shown that the action of the gravitational field of such a domain on a test null string for any initial conditions leads to oscillations of a test null string inside a region limited in space. The motion (drift) of the region inside which the test null string oscillates depends on the ratio of the initial parameters characterizing the test null string and the null string domain. These regions can be considered as particles localized in space with an effective nonzero rest mass. For these particles, you can enter the concept of “life time”, which depends on the number of layers in the multi-string system. It is also possible to introduce the concept of particle “mass” (energy), which is determined by the size of the region in which the null string oscillates and depends on the trajectory of the null string in this region. Under the influence of changing external conditions one kind of particles can pass into another.

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Dynamics of a probe null string in the gravitational field of a closed null string radially collapsing in the plane

Theoretical and Mathematical Physics ◽

10.1134/s0040577917010123 ◽

2017 ◽

Vol 190 (1) ◽

pp. 140-153 ◽

Cited By ~ 5

Author(s):

A. P. Lelyakov ◽

A. S. Karpenko

Keyword(s):

Gravitational Field ◽

Null String

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Dynamics of a Non-Rotating Test Null String in the Gravitational Field of a Closed “Thick” Null String Radially Expanding or Collapsing in the Plane z = 0

Ukrainian Journal of Physics ◽

10.15407/ujpe59.11.1114 ◽

2014 ◽

Vol 59 (11) ◽

pp. 1125-1125 ◽

Cited By ~ 3

Author(s):

O.P. Lelyakov ◽

◽

A.S. Karpenko ◽

R.-D.O. Babadzhan ◽

◽

...

Keyword(s):

Gravitational Field ◽

Null String

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A one-dimensional self-gravitating stellar gas

Symposium - International Astronomical Union ◽

10.1017/s0074180900105261 ◽

1966 ◽

Vol 25 ◽

pp. 46-48 ◽

Cited By ~ 2

Author(s):

M. Lecar

Keyword(s):

Gravitational Field ◽

Phase Space ◽

Motion Picture ◽

Space Distribution ◽

Two Dimensional ◽

One Dimensional ◽

Phase Space Distribution ◽

Dimensional Phase Space ◽

The Mean

“Dynamical mixing”, i.e. relaxation of a stellar phase space distribution through interaction with the mean gravitational field, is numerically investigated for a one-dimensional self-gravitating stellar gas. Qualitative results are presented in the form of a motion picture of the flow of phase points (representing homogeneous slabs of stars) in two-dimensional phase space.

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