RT Journal Article
T1 Towards an optimally sensitive temperature probe in heavy-ion collisions
A1 López Pardo, Víctor
A1 Rothkopf, Alexander
K1 Quarkonium
K1 Quark-gluon plasma
K1 Hard probes
K1 Temperature
K1 Open quantum systems
K1 Lindblad
K1 Quantum metrology
K1 Observables
K1 Quantum brownian motion
K1 Caldeira-Leggett
AB The high-precision heavy quarkonium data from LHC Run 2 and the ongoing Run 3 provide a unique window into the properties of hot nuclear matter and the Quark-Gluon Plasma (QGP). To make full use of this data, it is crucial to go beyond traditional observables such as the nuclear modification factor 𝑅𝐴𝐴 and elliptic flow 𝑣2, and instead develop new probes that are more directly sensitive to the characteristics of the medium. We adopt the open quantum systems perspective for in-medium quarkonium and take inspiration from cold atom metrology techniques to construct observables with optimal sensitivity to specific QGP parameters. Focusing on the bulk temperature, we develop such optimal observables based on the Caldeira-Leggett master equation as a simplified setup, with the goal of extending it to a full Quantum Brownian Motion Lindblad equation.
PB Elsevier
YR 2025
FD 2025-12
LK https://hdl.handle.net/10347/46971
UL https://hdl.handle.net/10347/46971
LA eng
NO López-Pardo, V., & Rothkopf, A. (2025). Towards an optimally sensitive temperature probe in heavy-ion collisions. Journal of Subatomic Particles and Cosmology, 4, 100229. 10.1016/j.jspc.2025.100229
NO VLP was supported by Xunta de Galicia project ED481A 2022/286, by European Research Council project ERC-2018ADG-835105 YoctoLHC, by Xunta de Galicia (CIGUS Network of Research Centres), by European Union ERDF, by the Spanish Research State Agency under projects PID2020-119632GBI00 and PID2023-152762NB-I00, and project CEX2023-001318-M financed by MCIN/AEI/10.13039/501100011033. AR thanks Korea University for support through project K2503291 Ab-initio simulation of the real-time dynamics of non-relativistic fermions as well as project K2511131.
DS Minerva
RD 9 may 2026