ADVENTURES IN FRIEDMANN COSMOLOGIES---INTERACTION OF POSITIVE ENERGY DENSITIES WITH NEGATIVE ENERGY DENSITIES AND CURVATURE OF THE UNIVERSE

Author(s):  
Ravi Joshi
2020 ◽  
Author(s):  
Deep Bhattacharjee

‘Negative energy’ is one of those concepts which if can be detected physically then the most famous problem of physics can be solved that is ‘time travel’, as negative energy is used to keep the mouths of the wormholes opens without getting collapsed. Through mathematics, it has been possible to deduce the negative energy but in real life scenario, negative energy means ‘negative mass’ and ‘negative inertia’. And in principle ‘negative mass’ can be something which does not interact with ‘Higgs field’ as because in this case, the particle having the energy value ‘less than 0’ must lie under the hyperbolae of the spontaneous symmetry breaking during the acquirement of mass while the creation of particles. Generally to create a particles mass ‘Higgs field’ is necessary and to remove the Higgs field ‘per cubic centimeter of region approx’ the amount of energy needed is 10^40 joules which is far greater than the limit of energy the humans could achieved. Tachyon has been a hypothetical particles that can travel faster than light thereby having its origin below the ‘hyperbolae’ but it’s not experimentally verified. String theory or M-Theory having 6 Theories (Type I, type IIA, Type IIB, Heterotic SO(32), Heterotic (E8*E8), 11-dimensional SUGRA or Supersymmetric Gravity) contains open and closed strings. The open strings are particularly magnified in my paper as because it corresponds to a vibrations much alike a 1-dimensional wave where there is a certain resonant frequency in them. They are chaotic and the smallest part of every particles. Like electrons being a leptons consist of strings, Protons and Neutrons being a fermions’ contains up and down quarks which again consist of Strings much like the Gluons holding the two particles together forbidding the like charges of protons to repel due to ‘strong nuclear force’. A open string being its ends attached to D(p)-Branes is not allows to propagate in other dimensions, however, gravity (Graviton) being a closed string is not attached to D(p)-Branes thereby making a journey to ‘inter-dimensions’ where (p) in D(p) denotes the number of dimensions like 1,2,3,4 etcetera. It is however difficult to detect strings as because the Super symmetric (heavy) Particles need to be discovered first to make a journey for strings where Super Symmetry predicts heavier particles as that for every integer-spin bosons there is a half-integer spin fermions (for every graviton there is a Gravitino) and for every fermions there is a boson (like for every Photino there is a Photon). However these heavy particles will need more energy in the accelerators to get produced and so, sometimes the mass-gap in proton-proton collisions can be detected to predict these heavier particles which might be leaked to higher dimensions. Note, the unification of 4 fundamental forces provides a gateway of string theory with the 4 forces as (Strong nuclear force, weak Nuclear force, Gravitational force and electromagnetic force). And the required energy needed is 10^19 GeV, however the energy scale can be reduced to 1 TeV by increasing the number of additional spatial dimensions of ‘sub-millimeter’ sizes. Now, by considering a wave equation, and substituting it in Schrödinger equations by applying Klein-Gordon equations, it can be possible to make the Einstein relations of mass energy equivalence E=mc2 to the Plank-Einstein relations E=ℏω and finding out the eigenvalues from the equations as (-1 or +1) with a set of eigenvectors, and inputting it in the frequency of the strings, the most fundamental elements, along with the modified stress-energy momentum tensors, we can able to show that ‘not only negative energy exists at the very fundamental level but also negative energy implies a Schrodinger equations with a negative energy eigenvalues’ to pave the way for the impossible to achieve through mathematics. Apart from that it will be possible to exhibit the negative energy of the universe having the matrix Diag(+1,-1,-1,-1) with a positive energy and negative pressure to a Diag(-1,+1,+1,+1) with a negative energy and positive pressure where the ‘negative pressure will act as the Λ or the cosmological constant to repulse the force of gravity’ to the ‘positive pressure or the – Λ’ to make a way for a smooth Big Crunch, however we do not know whether ‘a universe with only a negative energy density’ can make a stable universe but from the conservation laws of the ‘Energy’ it can be assumed that ‘if there is negative energy in the universe, then there must be equal amount of positive energy in the universe to compensate for the negative energy’ making a stability in the laws of conservation of energy, along with an affine parameter ξ(-Λ) to prevent the annihilation process of the negative energy with the positive energy thereby making the universe safe for the fundamental particles inclusive and exclusive of the standard model. Also, faster than light travel is discussed with negative kinetic energy.


2018 ◽  
Vol 15 (09) ◽  
pp. 1850144 ◽  
Author(s):  
Alireza Sepehri ◽  
Richard Pincak

A new theory, named G(General)-theory in 14 dimensions, has been proposed that is reduced to [Formula: see text]-gravity and produces the metric of FRW universe in four dimensions. In this theory, the Universe is born in six stages. First, there is nothing in the world. Then, two strings, one with positive energy and one with negative energy in 14th, dimension are created such that the sum over their energies is zero. These strings are excited and for flowing their energies, other dimensions are produced. Second, these strings decay to G0-branes. Third, these branes join each other and construct Gp-branes which tensor fields live on. The rank of these fields can change from zero to p for [Formula: see text] and from zero to six for [Formula: see text]. Four, by compacting Gp-branes on three circles, supersymmetry is born which contains the equal number of degrees of freedom for fermions and bosons. Six, by reducing G-theory to four dimensions, FRW universe is emerges and initial tensor fields produce the predicted shape of [Formula: see text]-gravity.


2011 ◽  
Vol 141 ◽  
pp. 408-412 ◽  
Author(s):  
Yao Bao Yin ◽  
Ling Li

The mechanism of gas cooled or heated through a pneumatic throttle orifice is analyzed. Supposing the total energy of the gas is constant, if the force between the molecules does positive energy, it makes gas heated; if it does negative energy, it makes gas cooled. The conversion temperature of gas is an evaluation parameter for repulsive or attractive force. It has utilized Joule-Thomson coefficient and real gas equation of state to obtain the characteristics of conversion temperature, and the relationships between the molecules distance and the phenomenon of gas cooled or heated after throttle at normal temperature by the conversion characteristics are achieved. The experimental results agreed well with the theoretical results.


2015 ◽  
Vol 30 (11) ◽  
pp. 1550052 ◽  
Author(s):  
Masakatsu Kenmoku ◽  
Y. M. Cho

The superradiance phenomena of massive bosons and fermions in the Kerr space–time are studied in the Bargmann–Wigner formulation. In case of bi-spinor, the four independent components spinors correspond to the four bosonic freedom: one scalar and three vectors uniquely. The consistent description of the Bargmann–Wigner equations between fermions and bosons shows that the superradiance of the type with positive energy (0 < ω) and negative momentum near horizon (p H < 0) is shown not to occur. On the other hand, the superradiance of the type with negative energy (ω < 0) and positive momentum near horizon (0 < p H ) is still possible for both scalar bosons and spinor fermions.


1999 ◽  
Vol 14 (09) ◽  
pp. 1429-1484 ◽  
Author(s):  
FRANCESCO BIGAZZI ◽  
LUCA LUSANNA

A new spinning particle with a definite sign of the energy is defined on spacelike hypersurfaces after a critical discussion of the standard spinning particles. It is the pseudoclassical basis of the positive energy [Formula: see text] [or negative energy [Formula: see text]] part of the [Formula: see text] solutions of the Dirac equation. The study of the isolated system of N such spinning charged particles plus the electromagnetic field leads to their description in the rest frame Wigner-covariant instant form of dynamics on the Wigner hyperplanes orthogonal to the total four-momentum of the isolated system (when it is timelike). We find that on such hyperplanes these spinning particles have a nonminimal coupling only of the type "spin–magnetic field," like the nonrelativistic Pauli particles to which they tend in the nonrelativistic limit. The Lienard–Wiechert potentials associated with these charged spinning particles are found. Then, a comment is made on how to quantize the spinning particles respecting their fibered structure describing the spin structure.


2018 ◽  
Vol 84 (1) ◽  
Author(s):  
Michael S. Ruderman

We study standing waves on the surface of a tangential discontinuity in an incompressible plasma. The plasma is moving with constant velocity at one side of the discontinuity, while it is at rest at the other side. The moving plasma is ideal and the plasma at rest is viscous. We only consider the long wavelength limit where the viscous Reynolds number is large. A standing wave is a superposition of a forward and a backward wave. When the flow speed is between the critical speed and the Kelvin–Helmholtz threshold the backward wave is a negative energy wave, while the forward wave is always a positive energy wave. We show that viscosity causes the standing wave to grow. Its increment is equal to the difference between the negative energy wave increment and the positive energy wave decrement.


Author(s):  
Tetіana Basiuk ◽  
◽  
Oksana Romaniv ◽  
Mariya Krynytsʹka ◽  
◽  
...  

The aesthetics of the Ivano-Dolyna basalt deposit and the geological monument of nature "Basalt Pillars" (located within the deposit) has a positive emotional and psychosomatic impact on observers, especially contemplation of the petrified chronicle of the geological phenomenon, visiting the lake with emerald water. Agates of the basalt deposit emit positive energy and are able to absorb negative energy. There is a forest full of phytoncides around the quarries. The basalts of the deposit correspond to the permissible levels of state-regulated radiation parameters. This area deserves to be included in recreation and health programs, and it should be included in the routes of geotourism, not only domestic but also international. The existing and exhausted quarries of the Ivano-Dolyna basalt deposit have a health-improving effect as a cognitive and emotional enrichment during their visit. Taking into account a number of factors, we proposed the development of new types of recreational and tourist products within this area in partnership with environmental, scientific and cultural and educational organizations.


2001 ◽  
Vol 26 (1) ◽  
pp. 223-236 ◽  
Author(s):  
M. C. Lucy ◽  
B. A. Crooker

AbstractSelection of dairy cattle for increased milk production has decreased some indices of reproductive efficiency. For example, days open are increased by one day for every 100 kg of increased milk yield per lactation. Some of the change in days open can be explained by delayed onset of oestrous cyclicity and lower conception rate to artificial insemination in cows with greater milk production. Despite these negative associations between milk production and reproduction, reproduction in herds of high producing dairy cattle is not necessarily compromised relative to reproduction in herds of low producing dairy cattle. This is because there is a large environmental effect on dairy reproduction. High producing herds generally have better management and better oestrous detection. Therefore, high producing dairy herds may partially overcome the antagonistic relationship between milk production and reproduction. Physiological mechanisms that lead to poorer reproduction in high producing cows are partially defined. Negative energy balance that occurs in high producing dairy cows can be associated with a delay in the initiation of ovarian cycles and the interval to first breeding. Many of the effects of negative energy balance on postpartum reproduction can be explained by decreased serum luteinizing hormone (LH) that is associated with negative energy balance. Serum LH increases as cows move toward positive energy balance and greater LH stimulates growth and ovulation of ovarian follicles. We have initiated studies to address physiological differences in high and low index dairy cows. The reproductive endocrinology of cows from a control line (5,900 kg milk/lactation) and a select line (10,900 kg milk/lactation) of dairy cows at the University of Minnesota was studied over a two-year period. Cows in Year 1 were similar for serum concentrations of LH, follicle stimulating hormone (FSH), and oestradiol (preovulatory period). In both years, serum concentrations of progesterone during luteal phases, however, were decreased in select cows. The Year 2 cows also had a delay in the return to oestrous cyclicity that was associated with reduced LH. The possibility that decreased progesterone causes infertility in dairy cows will require further study. Collectively, these data suggest that changes in blood progesterone concentrations may explain, partially, lower fertility in high index dairy cows.


According to a theory proposed by Dirac one has to picture the vacuum as filled with an infinite number of electrons of negative kinetic energy, the electric density of which is, however, unobservable. One can observe only deviations from this "normal" density which either consist of an addition of electrons in states of positive energy or absence of electrons from some of the negative energy states (positive electrons). The discovery of the positive electron and the observed magnitude of the processes involving it give strong support to this view. This theory, as it stands, however, is not complete because it makes use of infinite quantities which are inadmissible in physical equations. It therefore must be understood (and was meant so by Dirac) to be a physical picture showing a way in which the quantum mechanical equations can probably be modified in order to give account of the positive electron and to solve the difficulty connected with the states of negative energy.


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