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From Light to Matter - Linear Breit-Wheeler Pair Creation and Positron Acceleration Inside Laser Irradiated Plasmas- [electronic resource]
From Light to Matter - Linear Breit-Wheeler Pair Creation and Positron Acceleration Inside Laser Irradiated Plasmas- [electronic resource]
상세정보
- 자료유형
- 학위논문파일 국외
- 최종처리일시
- 20240214101659
- ISBN
- 9798380581776
- DDC
- 530
- 저자명
- He, Yutong.
- 서명/저자
- From Light to Matter - Linear Breit-Wheeler Pair Creation and Positron Acceleration Inside Laser Irradiated Plasmas - [electronic resource]
- 발행사항
- [S.l.]: : University of California, San Diego., 2023
- 발행사항
- Ann Arbor : : ProQuest Dissertations & Theses,, 2023
- 형태사항
- 1 online resource(218 p.)
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-04, Section: B.
- 주기사항
- Advisor: Arefiev, Alexey.
- 학위논문주기
- Thesis (Ph.D.)--University of California, San Diego, 2023.
- 사용제한주기
- This item must not be sold to any third party vendors.
- 초록/해제
- 요약The linear Breit-Wheeler process (γγ→e-e+) is one of the fundamental processes of quantum electrodynamics with many important astrophysical applications. However, almost a century has passed since it was theoretically proposed in 1934, and there is still no experimental observation of the linear Breit-Wheeler process using real photons. To produce linear Breit- Wheeler pairs, the collision of dense and energetic photons is required due to the small cross section and high photon energy threshold of this process, which is challenging to be achieved in laboratory conditions. On the other hand, the rapid development of laser technology has allowed the state-of-the-art laser facilities to produce laser pulses with intensities above 1022 Wem-2. Such high-intensity, multi-PW, and multi-beam laser facilities open up brand new opportunities for the experimental realization of the linear Breit-Wheeler pair creation.This dissertation presents two schemes for producing the linear Breit-Wheeler pairs using currently available laser pulses, with the assistance of numerical tools we developed. We show that utilizing collective plasma effects beneficial for the linear Breit-Wheeler pair creation, one can achieve pair yields that was previously thought to be unattainable at current laser intensities. Compared to the pair yields reported in previous studies, the pair yields in the systems we propose are approximately two to three orders of magnitudes larger. We further show that by interacting with the strong fields in the laser-plasma system, a large proportion of the produced positrons can be accelerated to form collimated energetic positron beams in hundreds-of-MeV to GeV level. Our studies not only propose possible schemes for the first experimental observation of the linear Breit-Wheeler process in laboratory, but have also emphasized the existence of the previously overlooked linear Breit-Wheeler process in high-intensity laser-plasma interaction systems. The self-organized formation of collimated positron beams may also serve as a potential mechanism for energetic positron source.
- 일반주제명
- Applied physics.
- 일반주제명
- Quantum physics.
- 일반주제명
- Theoretical physics.
- 키워드
- Photons
- 키워드
- Plasma
- 키워드
- Laser pulses
- 기타저자
- University of California, San Diego Mechanical and Aerospace Engineering
- 기본자료저록
- Dissertations Abstracts International. 85-04B.
- 기본자료저록
- Dissertation Abstract International
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520240214101659
■006m o d
■007cr#unu||||||||
■020 ▼a9798380581776
■035 ▼a(MiAaPQ)AAI30635437
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aHe, Yutong.
■24510▼aFrom Light to Matter - Linear Breit-Wheeler Pair Creation and Positron Acceleration Inside Laser Irradiated Plasmas▼h[electronic resource]
■260 ▼a[S.l.]:▼bUniversity of California, San Diego. ▼c2023
■260 1▼aAnn Arbor :▼bProQuest Dissertations & Theses, ▼c2023
■300 ▼a1 online resource(218 p.)
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-04, Section: B.
■500 ▼aAdvisor: Arefiev, Alexey.
■5021 ▼aThesis (Ph.D.)--University of California, San Diego, 2023.
■506 ▼aThis item must not be sold to any third party vendors.
■520 ▼aThe linear Breit-Wheeler process (γγ→e-e+) is one of the fundamental processes of quantum electrodynamics with many important astrophysical applications. However, almost a century has passed since it was theoretically proposed in 1934, and there is still no experimental observation of the linear Breit-Wheeler process using real photons. To produce linear Breit- Wheeler pairs, the collision of dense and energetic photons is required due to the small cross section and high photon energy threshold of this process, which is challenging to be achieved in laboratory conditions. On the other hand, the rapid development of laser technology has allowed the state-of-the-art laser facilities to produce laser pulses with intensities above 1022 Wem-2. Such high-intensity, multi-PW, and multi-beam laser facilities open up brand new opportunities for the experimental realization of the linear Breit-Wheeler pair creation.This dissertation presents two schemes for producing the linear Breit-Wheeler pairs using currently available laser pulses, with the assistance of numerical tools we developed. We show that utilizing collective plasma effects beneficial for the linear Breit-Wheeler pair creation, one can achieve pair yields that was previously thought to be unattainable at current laser intensities. Compared to the pair yields reported in previous studies, the pair yields in the systems we propose are approximately two to three orders of magnitudes larger. We further show that by interacting with the strong fields in the laser-plasma system, a large proportion of the produced positrons can be accelerated to form collimated energetic positron beams in hundreds-of-MeV to GeV level. Our studies not only propose possible schemes for the first experimental observation of the linear Breit-Wheeler process in laboratory, but have also emphasized the existence of the previously overlooked linear Breit-Wheeler process in high-intensity laser-plasma interaction systems. The self-organized formation of collimated positron beams may also serve as a potential mechanism for energetic positron source.
■590 ▼aSchool code: 0033.
■650 4▼aApplied physics.
■650 4▼aHigh temperature physics.
■650 4▼aQuantum physics.
■650 4▼aTheoretical physics.
■653 ▼aQuantum electrodynamics
■653 ▼aPhotons
■653 ▼aBreit-Wheeler process
■653 ▼aPlasma
■653 ▼aLaser pulses
■690 ▼a0215
■690 ▼a0753
■690 ▼a0599
■690 ▼a0597
■71020▼aUniversity of California, San Diego▼bMechanical and Aerospace Engineering.
■7730 ▼tDissertations Abstracts International▼g85-04B.
■773 ▼tDissertation Abstract International
■790 ▼a0033
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16934829▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
■980 ▼a202402▼f2024
