Publications (14)
On vacuum structures of N = 2 LSUSY QED equivalent to N = 2 NLSUSY model
K. Shima, M. Tsuda, W. Lang
The vacuum structure of N = 2 linear supersymmetry (LSUSY) invariant QED, which is equivalent to N = 2 nonlinear supersymmetry (NLSUSY) model, is studied explicitly in two dimensio…
Gravitational Fragmentation of Extremely Metal-poor Circumstellar Discs
K. Shima, T. Hosokawa
We study the gravitational fragmentation of circumstellar discs accreting extremely metal-poor ( Zsun) gas, performing a suite of three-dimensional hydrodynamic sim…
Low energy particle physics and cosmology of nonlinear supersymmetric general relativity
K. Shima, M. Tsuda, W. Lang
We show a low energy physical meaning of nonlinear supersymmetric general relativity (NLSUSY GR) in asymptotic Riemann-flat space-time by studying the vacuum structure of N = 2 lin…
New Einstein-Hilbert-type Action and Superon-Graviton Model(SGM) of Nature
K. Shima, M. Tsuda, M. Sawaguchi
A nonlinear supersymmetric(NLSUSY) Einstein-Hilbert(EH)-type new action for unity of nature is obtained by performing the Einstein gravity analogue geomtrical arguments in high sym…
Cathodoluminescence spectroscopy of monolayer hexagonal boron nitride
K. Shima, T. S. Cheng, C. J. Mellor +7
Cathodoluminescence (CL) spectroscopy is a powerful technique for studying emission properties of optoelectronic materials because CL is free from excitable bandgap limits and from…
On Linearization of N=1 Nonlinear Supersymmetry
K. Shima, Y. Tanii, M. Tsuda
The N=1 Volkov-Akulov model of nonlinear supersymmetry is explicitly related to a vector supermultiplet model with a Fayet-Iliopoulos D term of linear supersymmetry. The physical s…
Isolating signatures of major cloud-cloud collisions II: The lifetimes of broad bridge features
T. J. Haworth, K. Shima, E. J. Tasker +5
We investigate the longevity of broad bridge features in position-velocity diagrams that appear as a result of cloud-cloud collisions. Broad bridges will have a finite lifetime due…
Linearization of N = 2 Nonlinear Supersymmetry and Spontaneous Supersymmetry Breaking Parameters
K. Shima, M. Tsuda
We show explicitly by the heuristic and practical arguments that for supersymmetry (SUSY) a SUSY invariant relation between component fields of a vector supermultiplet of l…
Isolating signatures of major cloud-cloud collisions using position-velocity diagrams
T. J. Haworth, E. J. Tasker, Y. Fukui +6
Collisions between giant molecular clouds are a potential mechanism for triggering the formation of massive stars, or even super star clusters. The trouble is identifying this proc…
Linearizing superon-graviton model(SGM)
K. Shima, M. Tsuda, M. Sawaguchi
We attempt the linearization of N=1 SGM action describing the nonlinear supersymmetric gravitational interaction of superon(Nambu-Goldstone fermion). We find that 80+80 field conte…
Superon-graviton model and supersymmetric structure of spacetime and matter
K. Shima, M. Tsuda, M. Sawaguchi
A new Einstein-Hilbert type (SGM) action describing gravitational interaction of Nambu-Goldstone(N-G) fermion of nonlinear supersymmetry(NL SUSY) is obtained by performing the Eins…
Linearizing N = 2 Nonlinear Supersymmetry
K. Shima, Y. Tanii, M. Tsuda
We investigate for the N = 2 supersymmetry (SUSY) a relation between a vector supermultiplet of the linear SUSY and the Volkov-Akulov model of the nonlinear SUSY. We express compon…
On linearization of superon-graviton model(SGM)
K. Shima, M. Tsuda, M. Sawaguchi
Referring to the supermultiplet of N=1 supergravity (SUGRA) the linearization of N=1 SGM action describing the nonlinear supersymmetric (NL SUSY) gravitational interaction of super…
Toward linearization of nonlinear supersymmetric Einstein-Hilbert-type action of superon-graviton model(SGM)
K. Shima, M. Tsuda, M. Sawaguchi
We attempt the linearization of the nonlinear supersymmetry encoded in the Einstein-Hilbert-type action {\it superon-graviton model(SGM)} describing the nonlinear supersymmetric gr…