% =============================================================================
% qgc-notation.sty -- canonical shared physics macros for the QGC series
% =============================================================================
% The single notation source for the series. New and migrated papers opt in with
% \usepackage{qgc-notation}; a paper then defines ONLY its genuinely paper-unique
% symbols locally. This resolves the notation drift that arose when each paper
% defined (and sometimes conflictingly redefined) the same constants.
%
% Canonical choices below were reconciled from the per-paper preambles, e.g.
%   \tdec -> \tau_{\mathrm{dec}},  \lP -> \ell_{\mathrm{P}},  \SdS -> S_{\mathrm{dS}}.
% =============================================================================
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{qgc-notation}[2026/06/08 QGC canonical notation]

% --- Fundamental constants & Planck units ------------------------------------
\newcommand{\kB}{k_{\mathrm{B}}}
\newcommand{\lP}{\ell_{\mathrm{P}}}
\newcommand{\tP}{t_{\mathrm{P}}}
\newcommand{\mP}{m_{\mathrm{P}}}
\newcommand{\MP}{M_{\mathrm{P}}}
\newcommand{\Msun}{M_{\odot}}

% --- Energies, rates, times --------------------------------------------------
\newcommand{\EG}{E_{\mathrm{G}}}                 % gravitational self-energy GM^2/d
\newcommand{\tdec}{\tau_{\mathrm{dec}}}          % decoherence time
\newcommand{\tgrav}{\tau_{\mathrm{grav}}}
\newcommand{\tenv}{\tau_{\mathrm{env}}}
\newcommand{\Gdec}{\Gamma_{\mathrm{dec}}}        % decoherence rate
\newcommand{\Ggrav}{\Gamma_{\mathrm{grav}}}
\newcommand{\Gtot}{\Gamma_{\mathrm{total}}}
\newcommand{\Gmax}{\Gamma_{\mathrm{max}}}
\newcommand{\GDP}{\Gamma_{\mathrm{DP}}}          % Diosi-Penrose
\newcommand{\GML}{\Gamma_{\mathrm{ML}}}          % Margolus-Levitin

% --- de Sitter / cosmology ---------------------------------------------------
\newcommand{\dS}{\mathrm{dS}}
\newcommand{\TdS}{T_{\mathrm{dS}}}
\newcommand{\SdS}{S_{\mathrm{dS}}}
\newcommand{\RH}{R_{\mathrm{H}}}                 % Hubble radius
\newcommand{\Hz}{H_{0}}
\newcommand{\azero}{a_{0}}                        % MOND acceleration scale
\newcommand{\rhoDE}{\rho_{\mathrm{DE}}}
\newcommand{\dm}{\Delta m}
\newcommand{\dmdS}{\Delta m_{\mathrm{dS}}}

% --- Entropies ---------------------------------------------------------------
\newcommand{\Sgen}{S_{\mathrm{gen}}}
\newcommand{\Sarea}{S_{\mathrm{area}}}
\newcommand{\Sbulk}{S_{\mathrm{bulk}}}

% --- Operators & shorthands --------------------------------------------------
\newcommand{\order}[1]{\mathcal{O}(#1)}
\DeclareMathOperator{\Si}{Si}                     % sine integral

\endinput