Organophosphate esters are used as additives in flame retardants and plasticizers, they ubiquitous the indoor environment. Phosphorus (PFRs) present residential dust, but few epidemiological studies have assessed their impact on human health. We measured levels of 11 PFRs floor dust multi-surface 182 single-family dwellings Japan. evaluated correlations with asthma allergies inhabitants. Tris(2-butoxyethyl) phosphate was detected all samples (median value: 580 μg/g 111 dust)....

We calculate charmonium correlators on the lattice with $2+1$ flavors of sea quarks and charm valence quarks, both described by M\"obius domain-wall fermion. Temporal moments are calculated matched to perturbative QCD formulas extract quark mass ${m}_{c}(\ensuremath{\mu})$ strong coupling constant ${\ensuremath{\alpha}}_{s}(\ensuremath{\mu})$. Lattice data at three spacings, 0.044, 0.055, 0.080 fm, extrapolated continuum limit. The in vector channel confirmed be consistent experimental for...

This study was conducted to clarify regional differences in residential factors and the association of those with dwellings having sick house syndrome (SHS) problems. The survey six areas northern southern Japan. In terms differences, dampness not as severe Sapporo compared that south. SHS defined using five categories nasal, throat respiratory, skin general symptoms, which appeared frequently or improved upon leaving home. index estimated by sum presence several indicators: condensation on...

The Casimir effect arises from the zero-point energy of particles in momentum space deformed by existence two parallel plates. For degrees freedom on lattice, its energy-momentum dispersion is determined so as to keep a periodicity within Brillouin zone, that modified. We study properties for lattice fermions, such naive fermion, Wilson and overlap fermion based Möbius domain-wall formulation, 1+1−, 2+1−, 3+1-dimensional space-time with periodic or antiperiodic boundary condition. An...

We discuss the quantum computation of dynamical chirality production in lattice gauge theory. Although a fermion is complicated general dimensions, it can be simply formulated on one-dimensional lattice. The chiral formalism enables us to extract physical part that would interpreted as anomaly continuous demonstrate <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>Z</a:mi><a:mn>2</a:mn></a:msub></a:math> theory classical emulator. Published by American...

We propose a new renormalization scheme of tensor networks made only third order tensors. The isometry used for coarse-graining the network can be prepared at an $O(D^6)$ computational cost in any $d$ dimension ($d \ge 2$), where $D$ is truncated bond Although it reduced to $O(D^5)$ if randomized singular value decomposition employed, total $O(D^{d+3})$ because contraction part creating renormalized with isometries has $D^{d+3}$ multiplications. test our method three dimensional Ising model...

The Casimir effect is a fundamental quantum phenomenon induced by the zero-point energy for field. It well-known relativistic fields with linear dispersion relation, while its existence or absence nonrelativistic quadratic an unsettled question. Here, we investigate effects various relations on lattice. We find that dispersions proportional to even power of momentum are absent in long distance but remnant survives short distance. Such will be experimentally observed materials lattice, such...

The Casimir effect is induced by the interplay between photon fields and boundary conditions, in particular, modified axion electrodynamics may lead to sign-flipping of energy. We propose a theoretical approach derive electrodynamics. This based on lattice regularization enables us discuss dependence spacing for With this approach, behavior energy correctly reproduced. By taking continuum limit physical quantity calculated lattice, we can obtain results consistent with theory. also be...

International Journal of Modern Physics AAccepted Papers No AccessCasimir effect at finite densityDaisuke Fujii, Katsumasa Nakayama, and Kei SuzukiDaisuke Nakayama Search for more papers by this author , Suzukihttps://orcid.org/0000-0002-8746-4064 https://doi.org/10.1142/S0217751X25430201Cited by:0 (Source: Crossref) PreviousNext AboutFiguresReferencesRelatedDetailsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend Library ShareShare onFacebookTwitterLinked...

International Journal of Modern Physics AAccepted Papers No AccessCasimir effect on the lattice spacetimeDaisuke Fujii, Katsumasa Nakayama, and Kei SuzukiDaisuke Nakayamahttps://orcid.org/0000-0003-0270-8523 Search for more papers by this author , Suzuki https://doi.org/10.1142/S0217751X25430171Cited by:0 (Source: Crossref) PreviousNext AboutFiguresReferencesRelatedDetailsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend Library ShareShare onFacebookTwitterLinked...

We propose a method to construct the initial tensor representation of partition functions and observables for renormalization group (TRG). The TRG is numerical calculation technique that utilizes network representations physical quantities investigate properties without encountering sign problem. To apply TRG, it essential locally connected suitable recursive coarse-graining. present systematic approach translating general function this form. Furthermore, we show dependence algorithms on...

We propose a method to construct the initial tensor representation of partition functions and observables for renormalization group (TRG). The TRG is numerical calculation technique that utilizes network representations physical quantities investigate properties without encountering sign problem. To apply TRG, it essential locally connected suitable recursive coarse-graining. present systematic approach translating general function this form. Furthermore, we show dependence algorithms on...

This study investigated the possible relationships between exposures to mite allergen and airborne fungi with sick building syndrome (SBS) symptoms for residents living in newly built dwellings. We randomly sampled 5709 dwellings six prefectures from northern southern Japan. A total of 1479 425 households participated by completing questionnaire surveys agreeing environmental monitoring (Der 1), fungi, aldehydes, volatile organic compounds. Stepwise logistic regression analyses adjusted...

Finite-volume effects for the nucleon chiral partners are studied within framework of parity-doublet model. Our model includes vacuum energy shift nucleons, which is Casimir effect. We find that antiperiodic boundary finite-volume effect leads to symmetry restoration, and masses parity doublets degenerate. For periodic boundary, breaking enhanced, nucleons also increase. discuss finite-temperature dependence on number compactified spatial dimensions.

The Casimir effect is a quantum phenomenon induced by the zero-point energy of relativistic fields confined in finite-size system. This for photon has been studied long time, while realization counterparts fermion Dirac/Weyl semimetals an open question. We theoretically demonstrate typical properties electron and show results from effective Hamiltonian realistic materials such as Cd$_3$As$_2$ Na$_3$Bi. find oscillation function thickness thin film, which stems existence nodes momentum space....

We propose a definition of the Casimir energy for free lattice fermions. From this definition, we study effects massless or massive naive fermion, Wilson and (Möbius) domain-wall fermion in 1+1 dimensional spacetime with spatial periodic antiperiodic boundary condition. For find an oscillatory behavior energy, which is caused by difference between odd even sizes. small size N≥3, agrees very well that continuum theory, suggests can control discretization artifacts effect measured simulations....

The eigenvalue spectrum $\rho(\lambda)$ of the Dirac operator is numerically calculated in lattice QCD with 2+1 flavors dynamical domain-wall fermions. In high-energy regime, discretization effects become significant. We subtract them at leading order and then take continuum limit data three spacings. Lattice results for exponent $\partial\ln\rho/\partial\ln\lambda$ are matched to perturbation theory, which known up $O(\alpha_s^4)$, extract strong coupling constant $\alpha_s$.

We numerically study the phase structure of $CP(1)$ model in presence a topological $\ensuremath{\theta}$-term, regime afflicted by sign problem for conventional lattice Monte Carlo simulations. Using bond-weighted tensor renormalization group method, we compute free energy inverse couplings ranging from $0\ensuremath{\le}\ensuremath{\beta}\ensuremath{\le}1.1$ and find $CP$-violating, first-order transition at $\ensuremath{\theta}=\ensuremath{\pi}$. In contrast to previous findings, our...

We investigate the Kondo effect with Wilson fermions. This is based on a mean-field approach for chiral Gross-Neveu model including four-point interactions between light fermion and heavy fermion. For massless fermions, we demonstrate appearance of effect. point out that there coexistence phase both light-fermion scalar condensate condensate, critical chemical potentials are shifted by negative-mass find favored near parameter region realizing Aoki phase. Our findings will be useful...

We study the lattice supersymmetric models numerically using transfer matrix approach. This method consists only of deterministic processes and has no statistical uncertainties. improve it by performing a scale transformation variables such that Witten index is correctly reproduced from model, other prescriptions are shown in detail. Compared to precious Monte-Carlo results, we can estimate effective masses, SUSY Ward identity cut-off dependence results high precision. Those kinds...

We propose a non-perturbative formulation of the Atiyah-Patodi-Singer(APS) index in lattice gauge theory, which is given by $η$ invariant domain-wall Dirac operator. Our definition always an integer with finite spacing. To verify this proposal, using eigenmode set free fermion, we perturbatively show continuum limit that curvature term APS theorem appears as contribution from massive bulk extended modes, while boundary comes entirely massless edge-localized modes.

We study the tensor renormalization group (TRG) in dimension larger than two as Higher-order TRG (HOTRG) with randomized SVD method. The and detailed discussion on low order representation, we can calculate HOTRG reduced computational cost. also represent our method by using cost function, details of function for isometry determine precision, stability, calculation time. In study, show improvement SVD. propose that internal line respect any improves without changing

We propose $D$ mesons as probes to investigate finite-volume effects for chiral symmetry breaking at zero and finite temperature. By using the $2+1$-flavor linear-sigma model with constituent light quarks, we analyze Casimir $\sigma$ mean fields: The is rapidly restored by antiperiodic boundary catalyzed periodic boundary. also show phase diagram of fields on volume temperature plane. For mesons, employ an effective based chiral-partner structure, where dependence induced fields. find that...

We study supersymmetry breaking from a lattice model of N=2 supersymmetric quantum mechanics using the direct computational method proposed in arXiv:1803.07960. The vanishing Witten index is realized as numerical result high precision. expectation value Hamiltonian evaluated for double-well potential. Compared with previous Monte-Carlo results, obtained vacuum energy coincides known values within small errors strong couplings. instanton effect also reproduced weak used helps us to evaluate...