Federalism, ERISA, and State Single‐Payer Health Care

While federal health reform sputters, states have begun to pursue their own transformative strategies for achieving universal coverage, the most ambitious of which are state-based single-payer plans. Since the passage of the Affordable Care Act in 2010, legislators in twenty-one states have proposed sixty-six unique bills to establish single-payer health care systems. This paper systematically surveys those state legislative efforts and exposes the federalism trap that threatens to derail them: ERISA\u27s preemption of state regulation relating to employer-sponsored health insurance. ERISA\u27s expansive preemption provision creates a narrow, risky path for state regulation to capture the employer health care expenditures crucial for financing a single-payer system. While this paper illustrates how state proposals may survive ERISA, the threat of preemption drives states to structure their plans in convoluted ways that may undermine other systemic goals such as universality, solidarity, and streamlined administration. This analysis demonstrates how ERISA\u27s uniquely broad preemption, coupled with its lack of waiver authority, elevates the interests of private employers above those of sovereign states and diminishes states\u27 abilities to serve as laboratories of health reform. We argue that this moment in health reform demands ERISA preemption reform. To restore balance to health care federalism and pave the way for state reforms of all kinds, this paper proposes federal legislative and jurisprudential solutions: amendments to ERISA\u27s preemption provisions, the addition of a statutory waiver, and/or a reinterpretation of ERISA preemption consistent with congressional intent and the presumption against preemption

Four-electron shell structures and an interacting two-electron system in carbon nanotube quantum dots

Low-temperature transport measurements have been carried out on single-wall carbon nanotube quantum dots in a weakly coupled regime in magnetic fields up to 8 Tesla. Four-electron shell filling was observed, and the magnetic field evolution of each Coulomb peak was investigated, in which magnetic field induced spin flip and resulting spin polarization were observed. Excitation spectroscopy measurements have revealed Zeeman splitting of single particle states for one electron in the shell, and demonstrated singlet and triplet states with direct observation of the exchange splitting at zero-magnetic field for two electrons in the shell, the simplest example of the Hund's rule. The latter indicates the direct analogy to an artificial He atom.Comment: 4 pages, 3 figures, submitted to Physical Review Letter

Health Reform Reconstruction

This Article connects the failed, inequitable U.S. coronavirus pandemic response to conceptual and structural constraints that have held back U.S health reform for decades and calls for reconstruction. For more than a half-century, a cramped “iron triangle” ethos has constrained health reform conceptually. Reforms aimed to balance individual interests in cost, quality, and access to health care, while marginalizing equity, solidarity, and public health. In the iron triangle era, reforms unquestioningly accommodated four legally and logistically entrenched fixtures — individualism, fiscal fragmentation, privatization, and federalism — that distort and diffuse any reach toward social justice. The profound racial disparities and public health failures of the U.S. pandemic response have agonizingly manifested the limitations of pre-2020 health reform and demand a reconstruction. Health reform reconstruction begins with a new conceptual framework that aims to realize health justice. Health justice requires commitments to anti-racism, equitable distribution of the burdens and benefits of public investments in health care and public health (for which health care access, quality, and cost are useful, but not exhaustive, metrics), and community empowerment. These commitments put health justice on a collision course with the fixtures of individualism, fiscal fragmentation, privatization, and federalism. Thus, incremental reforms must be measured by the extent to which they confront these fixtures. This Article describes how health reform reconstruction can chart the path for legal change and proposes “confrontational incrementalism” as a method for recognizing the necessity of reconstructive reform, along with its near impossibility

Heavy-Electron Formation and Bipolaronic Transition in the Anharmonic Holstein Model

The emergence of the bipolaronic phase and the formation of the heavy-electron state in the anharmonic Holstein model are investigated using the dynamical mean-field theory in combination with the exact diagonalization method. For a weak anharmonicity, it is confirmed that the first-order polaron-bipolaron transition occurs from the observation of a discontinuity in the behavior of several physical quantities. When the anharmonicity is gradually increased, the polaron-bipolaron transition temperature is reduced as well as the critical values of the electron-phonon coupling constant for polaron-bipolaron transition. For a strong anharmonicity, the polaron-bipolaron transition eventually changes to a crossover behavior. The effect of anharmonicity on the formation of the heavy-electron state near the polaron-bipolaron transition and the crossover region is discussed in detail.Comment: 11 pages, 13 figure

Measurement of the π−\pi^- decay width of Λ5^5_\LambdaHe

We have precisely measured $\Lambda \to p\pi^-$ decay width of \5LHe and demonstrated significantly larger $\alpha$ -$\Lambda$ overlap than expected from the central repulsion $\alpha$-$\Lambda$ potential, which is derived from YNG \Lambda$-nucleon interaction.Comment: 4 pages, 3 figure

Light Lambda-Lambda Hypernuclei and the Onset of Stability for Lambda-Xi Hypernuclei

New Faddeev-Yakubovsky calculations for light Lambda-Lambda hypernuclei are presented in order to assess the self consistency of the Lambda-Lambda hypernuclear binding-energy world data and the implied strength of the Lambda-Lambda interaction, in the wake of recent experimental reports on Lambda-Lambda-4H and Lambda-Lambda-6He. Using Gaussian soft-core simulations of Nijmegen one-boson-exchange model interactions, the Nijmegen soft-core model NSC97 simulations are found close to reproducing the recently reported binding energy of Lambda-Lambda-6He, but not those of other species. For stranger systems, Faddeev calculations of light Lambda-Xi hypernuclei, using a simulation of the strongly attractive Lambda-Xi interactions due to the same model, suggest that Lambda-Xi-6He marks the onset of nuclear stability for Xi hyperons.Comment: 5 pages, 3 postscript figures; fig.2 replaced, minor changes, accepted as Rapid Communication in PR

Comap: A synthetic dataset for collective multi-agent perception of autonomous driving

Collective perception of connected vehicles can sufficiently increase the safety and reliability of autonomous driving by sharing perception information. However, collecting real experimental data for such scenarios is extremely expensive. Therefore, we built a computational efficient co-simulation synthetic data generator through CARLA and SUMO simulators. The simulated data contain image and point cloud data as well as ground truth for object detection and semantic segmentation tasks. To verify the superior performance gain of collective perception over single-vehicle perception, we conducted experiments of vehicle detection, which is one of the most important perception tasks for autonomous driving, on this data set. A 3D object detector and a Bird's Eye View (BEV) detector are trained and then test with different configurations of the number of cooperative vehicles and vehicle communication ranges. The experiment results showed that collective perception can not only dramatically increase the overall mean detection accuracy but also the localization accuracy of detected bounding boxes. Besides, a vehicle detection comparison experiment showed that the detection performance drop caused by sensor observation noise can be canceled out by redundant information collected by multiple vehicles

Faddeev calculations for the A=5,6 Lambda-Lambda hypernuclei

Faddev calculations are reported for Lambda-Lambda-5H, Lambda-Lambda-5He and Lambda-Lambda-6He in terms of two Lambda hyperons plus the respective nuclear clusters, using Lambda-Lambda central potentials considered in past non-Faddeev calculations of Lambda-Lambda-6He. The convergence with respect to the partial-wave expansion is studied, and comparison is made with some of these Lambda-Lambda hypernuclear calculations. The Lambda-Lambda Xi-N mixing effect is briefly discussed.Comment: submitted for publicatio

Electromagnetic properties of graphene junctions

A resonant chiral tunneling (CT) across a graphene junction (GJ) induced by an external electromagnetic field (EF) is studied. Modulation of the electron and hole wavefunction phases $\varphi$ by the external EF during the CT processes strongly impacts the CT directional diagram. Therefore the a.c. transport characteristics of GJs depend on the EF polarization and frequency considerably. The GJ shows great promises for various nanoelectronic applications working in the THz diapason.Comment: 4 pages 3 figure