A5066988696- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Black Holes and Theoretical Physics
- Cosmology and Gravitation Theories
- Gamma-ray bursts and supernovae
- Physics of Superconductivity and Magnetism
- Dark Matter and Cosmic Phenomena
- Quantum many-body systems
- Neutrino Physics Research
- Quantum Computing Algorithms and Architecture
- Theoretical and Computational Physics
- Atomic and Subatomic Physics Research
- Computational Physics and Python Applications
- Nuclear physics research studies
- Quantum chaos and dynamical systems
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum Information and Cryptography
- Gaussian Processes and Bayesian Inference
- Stellar, planetary, and galactic studies
- Astrophysical Phenomena and Observations
- Quantum Mechanics and Applications
- Noncommutative and Quantum Gravity Theories
- Spectral Theory in Mathematical Physics
- Aortic Disease and Treatment Approaches
RIKEN
2020-2024
University of Michigan–Ann Arbor
2021-2023
Quantum Chemistry Research Institute
2022-2023
RIKEN Center for Advanced Photonics
2022-2023
Nippon Soken (Japan)
2021-2023
Wako University
2023
RIKEN Center for Quantum Computing
2023
Pioneer (United States)
2023
Pioneer (Japan)
2022-2023
Vita-Salute San Raffaele University
2022
The difference from 4 to 6 σ in the Hubble constant (H0) between values observed with local (Cepheids and Supernovae Ia, SNe Ia) high-z probes (Cosmic Microwave Background obtained by Planck data) still challenges astrophysics cosmology community. Previous analysis has shown that there is an evolution scales as f(z)=H0/(1+z)η, where H0 H0(z=0) η evolutionary parameter. Here, we investigate if this holds using Ia gathered Pantheon sample Baryon Acoustic Oscillations. We assume H0=70kms−1Mpc−1...
It is for the first time that quantum simulation high-energy physics (HEP) studied in U.S. decadal particle-physics community planning, and fact until recently, this was not considered a mainstream topic community. This speaks of remarkable rate growth subfield over past few years, stimulated by impressive advancements information sciences (QIS) associated technologies decade, significant investment area government private sectors other countries. High-energy physicists have quickly...
We present the first observation of a flavor-singlet scalar meson as light pion in ${N}_{f}=8$ QCD on lattice, using highly improved staggered quark action. Such can be regarded composite Higgs with mass 125 GeV. In accord our previous lattice results showing that theory exhibits walking behavior, may technidilaton, pseudo-Nambu-Goldstone boson approximate scale symmetry technicolor.
We present results for the spectrum of a strongly interacting SU(3) gauge theory with ${N}_{f}=8$ light fermions in fundamental representation. Carrying out nonperturbative lattice calculations at lightest masses and largest volumes considered to date, we confirm existence remarkably singlet scalar particle. explore rich resonance 8-flavor context search new physics beyond standard model Large Hadron Collider (LHC). Connecting our models dynamical electroweak symmetry breaking, estimate...
One intriguing BSM particle is the QCD axion, which could simultaneously provide a solution to Strong CP problem and account for some, if not all, of dark matter density in universe. This pNGB conjectured Peccei-Quinn (PQ) symmetry Standard Model. Its mass interactions are suppressed by heavy breaking scale, $f_a$, whose value roughly greater than $10^{9}$ GeV (or, conversely, axion mass, $m_a$, less $10^4\ \mu \text{eV}$). The axions universe, cannot exceed relic quantity great interest...
We present our lattice studies of SU(3) gauge theory with $N_f$ = 8 degenerate fermions in the fundamental representation. Using nHYP-smeared staggered we study finite-temperature transitions on volumes as large $L^3 \times N_t 48^3 24$, and zero-temperature composite spectrum up to $64^3 128$. The indirectly indicates spontaneous chiral symmetry breaking, but fixed $N_t \leq 24$ enter a strongly coupled phase fermion mass decreases, which prevents direct confirmation breaking limit. In...
We present a determination of nucleon-nucleon scattering phase shifts for ℓ≥0. The S, P, D and F both the spin-triplet spin-singlet channels are computed with lattice Quantum ChromoDynamics. For ℓ>0, this is first QCD calculation using Lüscher finite-volume formalism. This required design implementation novel methods involving displaced sources momentum-space cubic sinks. To demonstrate utility our approach, calculations were performed in SU(3)-flavor limit where light quark masses have been...
Based on the highly improved staggered quark action, we perform lattice simulations of $N_f=8$ QCD and confirm our previous observation a flavor-singlet scalar meson (denoted as $\sigma$) light pion various "walking signals" through low-lying spectra, with higher statistics, smaller fermion masses $m_f$, larger volumes. We measure $M_\pi$, $F_\pi$, $M_\rho$, $M_{a_0}$, $M_{a_1}$, $M_{b_1}$, $M_N$, $M_\sigma$, $F_\sigma$, $\langle \bar{\psi} \psi\rangle$ (both directly GMOR relation), string...
ABSTRACT Gamma-ray bursts (GRBs), can be employed as standardized candles, extending the distance ladder beyond Type Ia supernovae (SNe Ia, z = 2.26). We standardize GRBs using three-dimensional (3D) Fundamental Plane relation (the Dainotti relation) among rest-frame end time of X-ray plateau emission, its corresponding luminosity, and peak prompt luminosity. Combining SNe GRBs, we constrain ΩM 0.299 ± 0.009 assuming a flat Λ cold dark matter (ΛCDM) cosmology with without correcting for...
A clear patency benefit of a drug-eluting stent (DES) over bare metal stents (BMSs) for treating peripheral artery disease the femoropopliteal segment has not been definitively demonstrated. The EMINENT study (Trial Comparing Eluvia Versus Bare Metal Stent in Treatment Superficial Femoral and/or Proximal Popliteal Artery) was designed to evaluate DES (Boston Scientific, Marlborough, MA), polymer-coated paclitaxel-eluting stent, compared with BMSs treatment lesions.EMINENT is prospective,...
The violation of Baryon Number, $\mathcal{B}$, is an essential ingredient for the preferential creation matter over antimatter needed to account observed baryon asymmetry in universe. However, such a process has yet be experimentally observed. HIBEAM/NNBAR %experiment program proposed two-stage experiment at European Spallation Source (ESS) search number violation. will include high-sensitivity searches processes that violate by one or two units: free neutron-antineutron oscillation...
Matrix quantum mechanics plays various important roles in theoretical physics, such as a holographic description of black holes. Understanding holes and the role entanglement setup is paramount importance for development better algorithms (quantum error correction codes) realization theory gravity. Quantum computing deep learning offer us potentially useful approaches to study dynamics matrix mechanics. In this paper we perform systematic survey mechanics, comparing them Lattice Monte Carlo...
The sparse version of the Sachdev-Ye-Kitaev (SYK) model reproduces essential features original SYK while reducing number disorder parameters. In this Research Letter, we propose a further simplification which call binary-coupling model. We set nonzero couplings to be $\ifmmode\pm\else\textpm\fi{}1$, rather than being sampled from continuous distribution such as Gaussian. Remarkably, turns out an improvement: exhibits strong correlations in spectrum, is important feature that leads quick...
On the basis of lattice simulations using highly improved staggered quarks for twelve-flavor QCD with several bare fermion masses, we observe a flavor-singlet scalar state lighter than pion in correlators fermionic interpolating operators. The same is also investigated gluonic Combined our previous study that showed to be consistent being conformal window, infer lightness due infrared conformality. This result shed some light on possibility composite Higgs boson (``technidilaton'') walking...
We perform a systematic, large-scale lattice simulation of D0-brane quantum mechanics. The large-$N$ and continuum limits the gauge theory are taken for first time at various temperatures $0.4\ensuremath{\le}T\ensuremath{\le}1.0$. As way to test gauge/gravity duality conjecture we compute internal energy black hole as function temperature directly from theory. obtain leading behavior that is compatible with supergravity result $E/{N}^{2}=7.41{T}^{14/5}$: coefficient estimated be...
We present results for the ratios of mean ($M_B$), variance ($\sigma_B^2$), skewness ($S_B)$ and kurtosis ($\kappa_B$) net baryon-number fluctuations obtained in lattice QCD calculations with a physical light to strange quark mass ratio. Using next-to-leading order Taylor expansions baryon chemical potential we find that qualitative features these closely resemble corresponding experimentally measured cumulants proton-number beam energies down $\sqrt{s_{_{NN}}} \ge 19.6$ GeV. show difference...
We study an SU(3) gauge theory with Nf=8 degenerate flavors of light fermions in the fundamental representation. Using domain wall fermion formulation, we investigate hadron spectrum, chiral condensate and electroweak S parameter. consider a range masses on two lattice volumes at single coupling chosen so that IR scales approximately match those from our previous studies two- six-flavor systems. Our results for spectrum suggest spontaneous symmetry breaking, though fits to mass dependence...
We present a new model of stealth dark matter: composite baryonic scalar an $SU({N}_{D})$ strongly coupled theory with even ${N}_{D}\ensuremath{\ge}4$. All mass scales are technically natural, and matter stability is automatic without imposing additional discrete or global symmetry. Constituent fermions transform in vectorlike representations the electroweak group that permit both electroweak-breaking electroweak-preserving terms. This gives tunable coupling to Higgs boson independent...
Observation of neutrinoless double beta decay, a lepton number violating process that has been proposed to clarify the nature neutrino masses, spawned an enormous world-wide experimental effort. Relating nuclear decay rates high-energy, beyond Standard Model (BSM) physics requires detailed knowledge non-perturbative QCD effects. Using lattice QCD, we compute necessary matrix elements short-range operators, which arise due heavy BSM mediators, contribute this via leading order $\pi^- \to...
Matrix elements of six-quark operators are needed to extract new physics constraints from experimental searches for neutron-antineutron oscillations. This work presents, in detail, the first lattice quantum chromodynamics calculations necessary transition matrix including calculation methods and discussions systematic uncertainties. Implications isospin chiral symmetry on elements, power counting limit, renormalization a basis discussed. Calculations performed with chiral-symmetric...
We report on the first application of stochastic Laplacian Heaviside method for computing multi-particle interactions with lattice QCD to two-nucleon system. Like method, this allows construction interpolating operators which can be used construct a positive definite set correlation functions, unlike nearly all other applications two nucleons in literature. It also variational analysis optimal linear combinations are formed that couple predominantly eigenstates Utilizing such methods has...
The Hubble constant ($H_0$) tension between Type Ia Supernovae (SNe Ia) and Planck measurements ranges from 4 to 6 $\sigma$. To investigate this tension, we estimate $H_{0}$ in the $\Lambda$CDM $w_{0}w_{a}$CDM models by dividing Pantheon sample, largest compilation of SNe Ia, into 3, 4, 20 40 bins. We fit extracted values with a function mimicking redshift evolution: $g(z)={H_0}(z)=\tilde{H}_0/(1+z)^\alpha$, where $\alpha$ indicates an evolutionary parameter $\tilde{H}_0=H_0$ at $z=0$. set...
Autonomous quantum error correction (AQEC) protects logical qubits by engineered dissipation and thus circumvents the necessity of frequent, error-prone measurement-feedback loops. Bosonic code spaces, where single-photon loss represents dominant source error, are promising candidates for AQEC due to their flexibility controllability. While existing proposals have demonstrated in-principle feasibility with bosonic these schemes typically based on exact implementation Knill-Laflamme...