Caroline Robin
YOU?
Author Swipe
Quantum complexity fluctuations from nuclear and hypernuclear forces Open
Toward an improved understanding of the role of quantum information in nuclei and exotic matter, we examine the quantum magic (nonstabilizerness) in low-energy strong interaction processes. As stabilizer states can be prepared efficiently …
Stabilizer-accelerated quantum many-body ground-state estimation Open
We investigate how the stabilizer formalism, in particular highly entangled stabilizer states, can be used to describe the emergence of many-body shape collectivity from individual constituents in a symmetry-preserving and classically effi…
Quantum magic and computational complexity in the neutrino sector Open
We consider the quantum magic in systems of dense neutrinos undergoing coherent flavor transformations, relevant for supernova and neutron-star binary mergers. Mapping the three-flavor-neutrino system to qutrits, the evolution of quantum m…
Quantum magic and multipartite entanglement in the structure of nuclei Open
Motivated by the Gottesman-Knill theorem, we present a detailed study of the quantum complexity of p-shell and sd-shell nuclei. Valence-space nuclear shell-model wave functions generated by the code are mapped to qubit registers using the …
Quantum Magic and Computational Complexity in the Neutrino Sector Open
We consider the quantum magic in systems of dense neutrinos undergoing coherent flavor transformations, relevant for supernova and neutron-star binary mergers. Mapping the three-flavor-neutrino system to qutrits, the evolution of quantum m…
Quantum Magic and Multi-Partite Entanglement in the Structure of Nuclei Open
Motivated by the Gottesman-Knill theorem, we present a detailed study of the quantum complexity of $p$-shell and $sd$-shell nuclei. Valence-space nuclear shell-model wavefunctions generated by the BIGSTICK code are mapped to qubit register…
Qu8its for quantum simulations of lattice quantum chromodynamics Open
We explore the utility of $d=8$ qudits, qu8its, for quantum simulations of\nthe dynamics of 1+1D SU(3) lattice quantum chromodynamics, including a mapping\nfor arbitrary numbers of flavors and lattice size and a re-organization of the\nHam…
Quantum Complexity Fluctuations from Nuclear and Hypernuclear Forces Open
Toward an improved understanding of the role of quantum information in nuclei and exotic matter, we examine the quantum magic (non-stabilizerness) in low-energy strong interaction processes. As stabilizer states can be prepared efficiently…
Competition between allowed and first-forbidden $β$ decay in $r$-process waiting-point nuclei within a relativistic beyond-mean-field approach Open
We compute $β$-decay half-lives of isotonic nuclear chains located at neutron shell closures $N=50$, $82$, $126$ and $184$, which are of particular importance for the $r$-process nucleosynthesis, and study the role of first-forbidden trans…
Quantum simulations of SO(5) many-fermion systems using qudits Open
The structure and dynamics of many-body systems are the result of a delicate interplay between underlying interactions. Fermionic pairing, for example, plays a central role in various physical systems, ranging from condensed matter to nucl…
Quantum simulations in effective model spaces: Hamiltonian-learning variational quantum eigensolver using digital quantum computers and application to the Lipkin-Meshkov-Glick model Open
Quantum simulations offer the potential to predict the structure and dynamics of nuclear many-body systems that are beyond the capabilities of classical computing. Generally, preparing the ground state of strongly-interacting many-body sys…
Multi-Body Entanglement and Information Rearrangement in Nuclear Many-Body Systems Open
We examine how effective-model-space (EMS) calculations of nuclear many-body systems rearrange and converge multi-particle entanglement. The generalized Lipkin-Meshkov-Glick (LMG) model is used to motivate and provide insight for future de…
Quantum Simulations of SO(5) Many-Fermion Systems using Qudits Open
The structure and dynamics of quantum many-body systems are the result of a delicate interplay between underlying interactions, which leads to intricate entanglement structures. Despite this apparent complexity, symmetries emerge and have …
Quantum Simulations in Effective Model Spaces (I): Hamiltonian Learning-VQE using Digital Quantum Computers and Application to the Lipkin-Meshkov-Glick Model Open
The utility of effective model spaces in quantum simulations of non-relativistic quantum many-body systems is explored in the context of the Lipkin-Meshkov-Glick model of interacting fermions. We introduce an iterative hybrid-classical-qua…
Beyond-mean-field calculations of allowed and first-forbidden <i>β</i><sup>−</sup> decays of <i>r</i>-process waiting-point nuclei Open
β -decay rates of neutron-rich nuclei, in particular those located at neutron shell closures, play a central role in simulations of the heavy-element nucleosynthesis and resulting abundance distributions. We present β -decay half-lives of …
Beyond-mean-field calculations of allowed and first-forbidden $\beta^-$ decays of $r$-process waiting-point nuclei Open
$\\beta$-decay rates of neutron-rich nuclei, in particular those located at\nneutron shell closures, play a central role in simulations of the heavy-element\nnucleosynthesis and resulting abundance distributions. We present $\\beta$-decay\…
Entanglement rearrangement in self-consistent nuclear structure calculations Open
Entanglement properties of $^4$He and $^6$He are investigated using nuclear\nmany-body calculations, specifically the single-nucleon entanglement entropy,\nand the two-nucleon mutual information and negativity. Nuclear wavefunctions\nare o…
Time-Reversed Particle-Vibration Loops and Nuclear Gamow-Teller Response Open
The nuclear response theory for charge-exchange modes in the relativistic particle-vibration coupling approach is extended to include for the first time particle-vibration coupling effects in the ground state of the parent nucleus. In a fr…
Coupling charge-exchange vibrations to nucleons in a relativistic framework: Effect on Gamow-Teller transitions and β-decay half-lives Open
The nuclear response theory for isospin-transfer modes in the relativistic\nparticle-vibration coupling framework is extended to include coupling of single\nnucleons to isospin-flip (charge-exchange) phonons, in addition to the usual\nneut…
View article: FRIB and the GW170817 Kilonova
FRIB and the GW170817 Kilonova Open
In July 2018 an FRIB Theory Alliance program was held on the implications of GW170817 and its associated kilonova for r-process nucleosynthesis. Topics of discussion included the astrophysical and nuclear physics uncertainties in the inter…
Isospin dynamics in nuclear structure Open
We discuss some special aspects of the nuclear many-body problem related to isospin transfer. The major quantity of interest is the in-medium propagator of a particlehole configuration of the proton-neutron character, which determines the …
Effects Of Meson-nucleon Dynamics In A Relativistic Approach To Medium-mass Nuclei Open
Recent developments in the relativistic nuclear field theory (RNFT) are reviewed. Based on the covariant meson-nucleon Lagrangian of quantum hadrodynamics, RNFT connects consistently the high-energy scale of heavy mesons, medium-energy ran…
Relativistic Approach To Nuclear Spin-isospin Excitations Including Quasiparticle-vibration Coupling Open
The spin-isospin response of stable and exotic nuclei is investigated in the framework of the proton-neutron relativistic quasiparticle time-blocking approximation (pn-RQTBA). Based on the Covariant Density Functional Theory, this method e…
Description of nuclear systems with a self-consistent configuration-mixing approach. II. Application to structure and reactions in even-even -shell nuclei Open
The variational multiparticle-multihole configuration mixing approach (MPMH)\nto nuclei has been proposed about a decade ago. While the first applications\nfollowed rapidly, the implementation of the full formalism of this method has\nonly…
Effects of meson-nucleon dynamics in a relativistic approach to medium-mass nuclei Open
Recent developments in the relativistic nuclear field theory (RNFT) are reviewed. Based on the covariant meson-nucleon Lagrangian of quantum hadrodynamics, RNFT connects consistently the high-energy scale of heavy mesons, medium-energy ran…