An official website of the United States government
Recent work in subregular syntax has revealed deep parallels among syntactic phenomena, many of which fall under the computational class TSL (Graf, 2018, 2022). Vu et al. (2019) argue that case dependencies are yet another member of this class. But their analysis focuses mainly on English, which is famously case-poor. In this paper I present a TSL analysis of Japanese, which features a much wider range of case-marking patterns, adding support to the claim that case dependencies, and by extension syntactic dependencies, are TSL.
more »
« less
Abstract ergative Case without morphological case
The existence and nature of abstract Case has been debated in recent years (McFadden 2004, Landau 2006, Markman 2009), particularly in languages that show no morphological case marking (Diercks 2012, Sheehan & van der Wal 2016). Using data from original fieldwork, I argue that Nukuoro (Polynesian-Outlier) instantiates abstract ergative Case without morphological case or agreement. Nukuoro shows a range of syntactic phenomena indicative of abstract Case, including object shift and pseudo noun incorporation (e.g., Massam 2001), syntactic ergativity in A'-movement, and alternative licensing in tenseless clauses. This pattern provides support for modern theories of Case (Legate 2008), which cleave the assignment of abstract Case from its realization in the morphology; additionally, this pattern differs from other documented examples of unrealized abstract Case by having an ergative alignment, rather than a nominative one (Halpert 2016, Sheehan & van der Wal 2016).
more »
« less
- Award ID(s):
- 2208886
- PAR ID:
- 10408700
- Editor(s):
- Bakay, Özge; Pratley, Breanna; Neu, Eva; Deal, Peyton
- Date Published:
- Journal Name:
- Proceedings of NELS
- ISSN:
- 0883-5500
- Page Range / eLocation ID:
- 259-272
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
More Like this
-
-
Abstract The use of metal and semimetal van der Waals contacts for 2D semiconducting devices has led to remarkable device optimizations. In comparison with conventional thin-film metal deposition, a reduction in Fermi level pinning at the contact interface for van der Waals contacts results in, generally, lower contact resistances and higher mobilities. Van der Waals contacts also lead to Schottky barriers that follow the Schottky–Mott rule, allowing barrier estimates on material properties alone. In this study, we present a double Schottky barrier model and apply it to a barrier tunable all van der Waals transistor. In a molybdenum disulfide (MoS2) transistor with graphene and few-layer graphene contacts, we find that the model can be applied to extract Schottky barrier heights that agree with the Schottky–Mott rule from simple two-terminal current–voltage measurements at room temperature. Furthermore, we show tunability of the Schottky barrierin-situusing a regional contact gate. Our results highlight the utility of a basic back-to-back diode model in extracting device characteristics in all van der Waals transistors.more » « less
-
Abstract Polaritons—confined light–matter waves—in van der Waals (vdW) materials are a research frontier in light–matter interactions with demonstrated advances in nanophotonics. Reflection, as a fundamental phenomenon involving waves, is particularly important for vdW polaritons, predominantly because it enables the investigation of polariton standing waves using the scanning probe technique. While previous works demonstrate a rigid phase ≈π/4 for the polariton reflection, herein is reported the altering of the polariton reflection phase by varying the geometry of polaritonic microstructures for the case study of hyperbolic surface polaritons (HSPs) in hexagonal boron nitride (hBN). Specifically, it is demonstrated that the polariton reflection phase can be systematically altered by varying the corner angle of the hBN microstructures, and that it experiences a π jump around a specific angle. This behavior, which is a consequence of the mathematical nature of the reflection coefficient, is therefore expected in other physical phenomena.more » « less
-
We formulate a renormalization-group approach to a general nonlinear oscillator problem. The approach is based on the exact group law obeyed by solutions of the corresponding ordinary differential equation. We consider both the autonomous models with time-independent parameters, as well as nonautonomous models with slowly varying parameters. We show that the renormalization-group equations for the nonautonomous case can be used to determine the geometric phase acquired by the oscillator during the change of its parameters. We illustrate the obtained results by applying them to the Van der Pol and Van der Pol-Duffing models.more » « less
-
Abstract Semiconductor microcavities with a high quality‐factor are an important component for photonics research and technology, especially in the strong coupling regime. While van der Waals semiconductors have emerged as an interesting platform for photonics due to their strong exciton–photon interaction strength and engineering flexibility, incorporating them in photonic devices requires heterogeneous integration and remains a challenge. This study demonstrates a method to assemble high quality factor microcavities for van der Waals materials, using high reflectance top mirrors which, similar to van der Waals materials themselves, can be nondestructively and reliably peeled off the substrate and transferred onto the rest of the device. Microcavities are created with quality factors consistently above 2000 and up to 11000 ± 800; and the strong coupling regime is demonstrated. The method can be generalized to other types of heterogeneously integrated photonic structures and will facilitate research on cavity quantum electrodynamic and photonic systems using van der Waals materials.more » « less
- Free Publicly Accessible Full Text
-
Accepted Manuscript1.0
- Conference Paper:
- The DOI is not currently available.
