Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Abasalt Rostami"'
Publikováno v:
Physics Letters B, Vol 835, Iss , Pp 137542- (2022)
Releasing the 12.5-year pulsar timing array data, the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has recently reported the evidence for a stochastic common-spectrum which would herald the detection of a stochastic gravita
Externí odkaz:
https://doaj.org/article/01e63514cb0b4fa39c20b1d0ba0bc807
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-23 (2021)
Abstract Most of the inflationary scenarios that try to explain the origin of Primordial Black Holes (PBHs) from the enhancements of the power spectrum to values of order one, at the relevant scales, run into clashes with the Effective Field Theory (
Externí odkaz:
https://doaj.org/article/026ecf7f7f3346b78dac2d04a1c9afa1
Autor:
Abasalt Rostami, Javad T. Firouzjaee
Publikováno v:
Universe, Vol 8, Iss 10, p 508 (2022)
We study the primary entanglement effect on the decoherence of reduced-density matrices of scalar fields, which interact with other fields or independent mode functions. We study the (leading) tree-level evolution of the scalar bispectrum due to a co
Externí odkaz:
https://doaj.org/article/68bfdebe2ba146cabb7c2fe5b82c11be
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-23 (2021)
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-23 (2021)
Most of the inflationary scenarios that try to explain the origin of Primordial Black Holes (PBHs) from the enhancements of the power spectrum to values of order one, at the relevant scales, run into clashes with the Effective Field Theory (EFT) crit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f230ca083165c4e7189eec3d1d3eee96
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Examining the end of inflation with primordial black holes mass distribution and gravitational waves
We explicitly construct a double-field inflationary model, which satisfies the latest Planck constraints at the cosmic microwave background (CMB) scales and produces the whole dark matter energy density as primordial black holes (PBHs), in the mass r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3cbedcdac46c2d66e7f0bebb4fe486f
Publikováno v:
The European Physical Journal Plus. 134
By applying the basic concept of the density matrix in an open quantum system and modification of quantum mechanics, we derive the Kossakowski-Lindblad equation, and different properties of this equation are reviewed. Next, a pedagogical approach is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e7f62f6e84dccc06e0671c89ccf7249
https://doi.org/10.1140/epjp/i2019-12712-1
https://doi.org/10.1140/epjp/i2019-12712-1
Autor:
Vahid Ashrafi, Nasroallah Moradi Kor, Abasalt Rostami Ajirloo, Morteza Shamsizadeh, Hoorieh Pourbozorg, Morad Shaaban
Publikováno v:
International Journal of Life Sciences. 9:87-90
A field experiment was performed in order to evaluate the effects of drought stress and application of starter nitrogen fertilizer on seed storage proteins and protein pattern in chickpea cultivars. Experiment was performed in split-factorial using r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37802aba509e1b279c831925e3e7fd5f
https://doi.org/10.3126/ijls.v9i5.12704
https://doi.org/10.3126/ijls.v9i5.12704
Autor:
Abasalt Rostami, Javad T. Firouzjaee
Publikováno v:
Physical Review
The effects of the entanglement of the inflaton field which initially entangled with those of another field on observables like power spectrum are known in the context of the Schr\"{o}dinger field theory. To clarify this effect in Heisenberg picture,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16902ab94d3e10e9b35110cb05d8350d
Autor:
Abasalt Rostami, Javad T. Firouzjaee
Publikováno v:
International Journal of Modern Physics D. 27:1850097
We review the Schr\"odinger picture of field theory in curved spacetime and using this formalism, the power spectrum of massive non-interacting, minimally coupled scalars in a fixed de Sitter background is obtained. To calculate the N-point function
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc8f746a6ffc8ebbdeaf80b6bd2db270
https://doi.org/10.1142/s0218271818500979
https://doi.org/10.1142/s0218271818500979