Counting initial conditions and degrees of freedom in nonlocal gravity

被引:0
|
作者
Calcagni, Gianluca [1 ]
机构
[1] CSIC, Inst Estructura Mat, Serrano 121, Madrid 28006, Spain
关键词
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Nonlocal quantum gravity is a class of fundamental theories whose classical and quantum dynamics is specified by "form factors", operators with infinitely many derivatives. After briefly reviewing this paradigm and its role in the resolution of big-bang and black-hole singularities, we count the number of nonpertubative field degrees of freedom as well as the number of initial conditions to be specified to solve the Cauchy problem. In particular, in four dimensions and for the string- related form factor, there are 8 degrees of freedom (2 graviton polarization modes, which propagate, and 6 nonpropagating rank-2 tensor modes) and 4 initial conditions. The method to obtain this result is illustrated for the case of a nonlocal scalar field.
引用
收藏
页码:1989 / 1995
页数:7
相关论文
共 50 条
  • [31] Necessary Conditions for K/2 Degrees of Freedom
    Gul, Recep
    Boleskei, Helmut
    Shamai , Shlomo
    2018 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT), 2018, : 2574 - 2578
  • [32] Canonical Conditions for K/2 Degrees of Freedom
    Stotz, David
    Jafar, Syed Ali
    Bolcskei, Helmut
    Shamai , Shlomo
    2016 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY, 2016, : 1292 - 1296
  • [33] SpookyNet: Learning force fields with electronic degrees of freedom and nonlocal effects
    Oliver T. Unke
    Stefan Chmiela
    Michael Gastegger
    Kristof T. Schütt
    Huziel E. Sauceda
    Klaus-Robert Müller
    Nature Communications, 12
  • [34] SpookyNet: Learning force fields with electronic degrees of freedom and nonlocal effects
    Unke, Oliver T.
    Chmiela, Stefan
    Gastegger, Michael
    Schuett, Kristof T.
    Sauceda, Huziel E.
    Mueller, Klaus-Robert
    NATURE COMMUNICATIONS, 2021, 12 (01)
  • [35] Canonical Conditions for K/2 Degrees of Freedom
    Guel, Recep
    Stotz, David
    Jafar, Syed Ali
    Boelcskei, Helmut
    Shamai , Shlomo
    IEEE TRANSACTIONS ON INFORMATION THEORY, 2022, 68 (03) : 1716 - 1730
  • [36] Degrees of freedom and local Lorentz invariance in f(T) gravity
    Jose Guzman, Maria
    Ferraro, Rafael
    15TH MARCEL GROSSMANN MEETING, PT A, 2022, : 398 - 403
  • [37] Inevitable Ghost and the Degrees of Freedom in f(R, G) Gravity
    De Felice, Antonio
    Tanaka, Takahiro
    PROGRESS OF THEORETICAL PHYSICS, 2010, 124 (03): : 503 - 515
  • [38] Semilinear integrodifferential equations with nonlocal initial conditions
    Liang, J
    Xiao, TJ
    COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2004, 47 (6-7) : 863 - 875
  • [40] Spatially covariant gravity with 2 degrees of freedom: Perturbative analysis
    Hu, Yu-Min
    Gao, Xian
    PHYSICAL REVIEW D, 2021, 104 (10)