From hypernuclei to the Inner Core of Neutron Stars: A Quantum Monte Carlo Study

Lonardoni, Diego; Pederiva, Francesco; Gandolfi, Stefano

doi:10.1088/1742-6596/529/1/012012

Cited by 8 publications

(4 citation statements)

References 28 publications

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“…Nevertheless, new data coming from ALICE and STAR may help to understand better the nature of the n-Λ interaction, as well as to yield more accurate measurements of the lifetime of 3 Λ H (ALICE Collaboration, 2016; STAR Collaboration, 2010;Zhu, 2013). On the other hand, a good understanding of the hyperon-nucleon interaction is needed for a proper understanding of highdensity matter systems, such as neutron stars (Lattimer and Prakash, 2004;Lonardoni et al, 2014;Vidaña, 2013;Weber et al, 2007).…”

Section: B Universality In Nuclear Systemsmentioning

confidence: 99%

Universal few-body physics and cluster formation

2017

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A recent rejuvenation of experimental and theoretical interest in the physics of few- body systems has provided deep, fundamental insights into a broad range of problems. Few-body physics is a cross-cutting discipline not restricted to conventional subject ar- eas such as nuclear physics or atomic or molecular physics. To a large degree, the recent explosion of interest in this subject has been sparked by dramatic enhancements of experimental capabilities in ultracold atomic systems over the past decade, which now permit atoms and molecules to be explored deep in the quantum mechanical limit with controllable two-body interactions. This control, typically enabled by magnetic or electromagnetically-dressed Fano-Feshbach resonances, allows in particular access to the range of universal few-body physics, where two-body scattering lengths far exceed all other length scales in the problem. The Efimov effect, where 3 particles experienc- ing short-range interactions can counterintuitively exhibit an infinite number of bound or quasi-bound energy levels, is the most famous example of universality. Tremendous progress in the field of universal Efimov physics has taken off, driven particularly by a combination of experimental and theoretical studies in the past decade, and prior to the first observation in 2006, by an extensive set of theoretical studies dating back to 1970. Because experimental observations of Efimov physics have usually relied on resonances or interference phenomena in three-body recombination, this connects naturally with the processes of molecule formation in a low temperature gas of atoms or nucleons, and more generally with N-body recombination processes. Some other topics not closely related to the Efimov effect are also reviewed in this article, including ...Comment: review articl

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Section: B Universality In Nuclear Systemsmentioning

confidence: 99%

Universal few-body physics and cluster formation

2017

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“…Such potentials have been derived from chiral EFT [111][112][113][114][115][116][117][118][119]) and applied to hypernuclei as well as matter [120][121][122][123][124][125][126][127][128][129] (for studies with phenomenological potentials see also Refs. [130][131][132][133][134][135][136][137]). However, these chiral EFT derivations rely on a perturbative expansion about the SU (3) chiral limit, and as we will discuss in Sec.…”

Section: A Fundamental Symmetry Tests and Experimentally Difficult/in...mentioning

confidence: 99%

Towards grounding nuclear physics in QCD

Drischler

Haxton

McElvain

et al. 2021

Progress in Particle and Nuclear Physics

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“…With probability 1/4, the subsequence is taken to be P 0 P 0 , P 0 P i k , P i k−1 P 0 , P i k−1 P i k . 6 The identified subsequence is replaced by its complement, resulting in a new configuration C ′ . Because we can interpret P −1 0 = P 0 = P j P −1 j (for any arbitrary index j) and so on, the cycle completion move can grow and shrink the sequence.…”

Section: J Stat Mech (2020) 073105mentioning

confidence: 99%

“…Quantum Monte Carlo (QMC) algorithms [1,2] are extremely useful for studying equilibrium properties of large quantum many-body systems, with applications ranging from superconductivity and novel quantum materials [3][4][5] through the physics of neutron stars [6] and quantum chromodynamics [7,8]. The algorithmic development of QMC remains an active area of research, with the dual goal of extending the scope of QMC applicability and improving convergence rates of existing algorithms in order to facilitate the discovery of new phenomena [9][10][11].…”

mentioning

confidence: 99%

Permutation matrix representation quantum Monte Carlo

Gupta¹,

Albash²,

Hen³

2020

J. Stat. Mech.

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We present a quantum Monte Carlo algorithm for the simulation of general quantum and classical many-body models within a single unifying framework. The algorithm builds on a power series expansion of the quantum partition function in its off-diagonal terms and is both parameter-free and Trotter errorfree. In our approach, the quantum dimension consists of products of elements of a permutation group. As such, it allows for the study of a very wide variety of models on an equal footing. To demonstrate the utility of our technique, we use it to clarify the emergence of the sign problem in the simulations of non-stoquastic physical models. We showcase the flexibility of our algorithm and the advantages it offers over existing state-of-the-art by simulating transverse-field Ising model Hamiltonians and comparing the performance of our technique against that of the stochastic series expansion algorithm. We also study a transverse-field Ising model augmented with randomly chosen two-body transverse-field interactions.

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From hypernuclei to the Inner Core of Neutron Stars: A Quantum Monte Carlo Study

Cited by 8 publications

References 28 publications

Universal few-body physics and cluster formation

Universal few-body physics and cluster formation

Towards grounding nuclear physics in QCD

Permutation matrix representation quantum Monte Carlo

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