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Review
Physics, Applied
Christian W. Bauer et al.
Summary: Quantum simulations play a crucial role in understanding the properties of fundamental particles and forces of nature. This article discusses the motivations, techniques, and challenges for simulating quantum fields, focusing on advancements in simulating high-density, non-equilibrium systems of quarks, gluons, and neutrinos. While the static and dynamic properties of matter are determined by the underlying fundamental quantum fields of the standard model, the simulation of these properties exceeds the capabilities of classical computation alone. However, advancements in quantum technologies provide hope for robust simulations of quantum fields in the near future, presenting opportunities for progress in nuclear and high-energy physics.
NATURE REVIEWS PHYSICS
(2023)
Article
Quantum Science & Technology
Christian W. Bauer et al.
Summary: For the first time, the U.S. decadal particle-physics community planning has studied quantum simulation for high-energy physics (HEP), which was not considered mainstream in the community until recently. This shows the rapid growth of this subfield in recent years, driven by advancements in quantum information sciences (QIS) and associated technologies, and significant investments in this area by the U.S. government and other countries. High-energy physicists have identified problems of fundamental importance that cannot be solved by classical computers but may benefit from quantum advantage. They are actively pursuing a program in theory, algorithm, and hardware co-design for simulations relevant to the HEP mission. This Roadmap aims to bring attention to and discuss the promises, requirements, challenges, and potential solutions in this exciting and challenging research area over the next decade and beyond.
Article
Astronomy & Astrophysics
Alan J. Barr
Summary: The decay of Higgs boson can produce pairs of W bosons in a maximally entangled state, whose spin may violate Bell inequalities. Experimental reconstruction of the spin density matrix of the W-+/- pair shows near-maximal violation of the CGLMP inequality. Bell tests can be performed at various colliders, and statistically significant violations may be observable with controlled reconstruction effects and backgrounds.
Review
Physics, Multidisciplinary
Natalie Klco et al.
Summary: Advances in isolating, controlling, and entangling quantum systems have enabled disruptive scientific and technological progress. This article summarizes the thoughts of three domain science theorists on the interface between entanglement, complexity, and quantum simulation, providing a contextualization of recent progress with the scientific objectives of nuclear and high-energy physics.
REPORTS ON PROGRESS IN PHYSICS
(2022)
Article
Astronomy & Astrophysics
Khadeejah Bepari et al.
Summary: This paper presents a novel quantum walk approach to simulating parton showers on a quantum computer. The proposed quantum algorithm improves the efficiency and scalability of simulating parton showers, allowing for the simulation of a larger number of steps. The use of quantum walks brings dramatic improvements to the simulation of parton showers and provides a step towards simulating more realistic scenarios.
Article
Physics, Multidisciplinary
M. Fabbrichesi et al.
Summary: Correlations between spin of top-quark pairs at a collider can be used to probe quantum entanglement at unexplored energies. A single observable can test the violation of Bell inequality with different confidence levels, taking into account detector effects. This test relies solely on spin correlations and does not require probabilistic determinations.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Nuclear
Sau Lan Wu et al.
Summary: This study demonstrates the potential of quantum machine learning in differentiating between signal and background in realistic physics datasets, with promising results obtained on both quantum simulator and hardware. The use of quantum machine learning in future high-luminosity LHC physics analyses, including Higgs boson self-couplings measurements and dark matter searches, is foreseen.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2021)
Article
Physics, Multidisciplinary
Yoav Afik et al.
Summary: This research proposes the detection of entanglement between the spins of top-antitop-quark pairs at the LHC, representing the first proposal of entanglement detection in a pair of quarks, and also the entanglement observation at the highest energy scale so far. The study shows that entanglement can be observed by direct measurement of the angular separation between the leptons arising from the decay of the top-antitop pair, and develops a simple protocol for the quantum tomography of the top-antitop pair.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Optics
Mari Carmen Banuls et al.
EUROPEAN PHYSICAL JOURNAL D
(2020)
Article
Optics
Shruti Dogra et al.
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
(2018)
Article
Optics
Min Jiang et al.
Review
Physics, Multidisciplinary
Ryszard Horodecki et al.
REVIEWS OF MODERN PHYSICS
(2009)
Article
Physics, Multidisciplinary
Reinhold A. Bertlmann et al.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2008)
Article
Optics
Shunlong Luo
Article
Physics, Multidisciplinary
M Möttönen et al.
PHYSICAL REVIEW LETTERS
(2004)
