H2020Индивидуална стипендия2017–2019

ELIQED · Exploring Laser Interaction with Matters in the Quantum Electrodynamics Regime

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2017-09-01 → 2019-11-16
Финансиране от ЕС: 195 455 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Взаимодействието между ултраинтензивни лазери и материя се анализира чрез създаване на фотони и електрон-позитронни двойки. Това помага за развитието на физиката на плазмата и създаването на ярки гама-лъчи за радиотерапия и астрофизика.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Exploring Laser Interaction with Matters in the Quantum Electrodynamics Regime

Based on our KLAPS code, we developed a 3D QED-PIC code including photon generation and pair creation. The new code was benchmarked and applied in our following investigations. Our research motivation is mainly based on the development of ultra-short and ultra-intense laser technology and new physics appearing in such laser interactions with matter. Extremely high power laser pulses at 10 - 100 PW levels are available or will be available in near future, e.g., the European ELI system, the OMEGA EP-OPAL system in USA, two 100-PW laser facilities in Shanghai and Mianyang China, etc. With such a laser pulse, laser plasma interactions are entering a QED-dominant regime accompanied with generation of abundant photons and pairs. We found that the new QED effects will significantly affect the classic pictures in the laser plasma physics, such as laser propagation and absorption in plasma. This push the development of the classic laser-plasma physics. On the other hand, we also found that high-energy, ultra-bright, femtosecond-duration gamma-rays can be driven via the QED effects. Such gamma-rays can be applied in nuclear photonics, radiotherapy, and laboratory astrophysics.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

With the next-generation laser facilities at the 10-100 petawatt (PW) level, e.g., the EU-funded Extreme Light Infrastructure (ELI) facilities, the physical picture of relativistic laser-plasma interaction found so far with PW scale lasers may not be valid anymore. It enters a new regime, where at least the following distinct features are expected to appear: 1) Dense electron-positron pairs and high energy γ-photons production via quantum electrodynamics (QED) processes; 2) Significant radiation recoil during electron and positron quiver motion in laser fields; 3) As large relativistic electron mass as proton mass, representing a unique plasma state. To fully exploit and understand this highly complex system, we will investigate some fundamental problems including the propagation of ultra-relativistic laser pulses in plasma, their energy dissipation and allocation to energetic particles and photons, and their scaling to laser and target parameters. Understanding of these problems is essential in order to manipulate QED effects for advanced applications, e.g., generation of high peak flux 10GeV protons, modelling of some energetic astrophysical phenomena, etc. This system is compound with collective and kinetic nonlinearities through wave-wave interactions, wave-particle interactions, and new particle generation and annihilation via QED processes. All these will be treated in a self-consistent way by developing an advanced particle-in-cell (PIC) code with QED processes included. The researcher Wei-Min Wang has nearly 10 years of experience in developing PIC codes for various applications. He was awarded the prestigious IUPAP Young Scientist Award in Computational Physics in 2015. The proposed research and training will further bring the researcher to an independent and matured theoretician. The research achievements will provide significant support to European projects associated with the ELI facilities, which will be ready for experiments in the near future.

Оригинален текст от CORDIS (на английски).

Участници

UNIVERSITY OF STRATHCLYDE · GlasgowКоординаторОбединеното кралство