Zobrazeno 1 - 10
of 3 649
pro vyhledávání: '"Stier P"'
We present time-resolved and CW optical spectroscopy studies of interlayer excitons (IXs) in 2$H-$ and 3$R-$stacked MoSe$_2$/WSe$_2$ heterobilayers and obtain evidence for the strong participation of hot phonons in the underlying photo-physics. Photo
Externí odkaz:
http://arxiv.org/abs/2407.15649
Many physical, biological, and even social systems are faced with the problem of how to efficiently harvest free energy from any of many possible environmental states, yet only have a limited number of harvesting strategies to choose among. We formal
Externí odkaz:
http://arxiv.org/abs/2407.05507
We study the infimum of the spectrum, or ground state energy (g.s.e.), of a discrete Schr\"odinger operator on $\theta\mathbb{Z}^d$ parameterized by a potential $V:\mathbb{R}^d\rightarrow\mathbb{R}_{\ge 0}$ and a frequency parameter $\theta\in (0,1)$
Externí odkaz:
http://arxiv.org/abs/2405.05907
Publikováno v:
Advances in Intelligent Data Analysis XXII. IDA 2024. Lecture Notes in Computer Science, vol 14642. Springer, Cham
Neural architecture search (NAS) is a challenging problem. Hierarchical search spaces allow for cheap evaluations of neural network sub modules to serve as surrogate for architecture evaluations. Yet, sometimes the hierarchy is too restrictive or the
Externí odkaz:
http://arxiv.org/abs/2404.16218
Autor:
Stier, F., Haghighirad, A. -A., Garbarino, G., Mishra, S., Stilkerich, N., Chen, D., Shekhar, C., Lacmann, T., Felser, C., Ritschel, T., Geck, J., Tacon, M. Le
We present a high-resolution single crystal x-ray diffraction study of Kagome superconductor \cvs, exploring its response to variations in pressure and temperature. We discover that at low temperatures, the structural modulations of the electronic su
Externí odkaz:
http://arxiv.org/abs/2404.14790
Autor:
Stier, Zachary
We study the problem of state synthesis in the DQC1 (One Clean Qubit) model of quantum computation, which provides a single pure qubit and $n$ maximally mixed qubits, and after applying any quantum circuit some subset of the qubits are measured or di
Externí odkaz:
http://arxiv.org/abs/2404.04198
Autor:
Dawkins, Aleyah, Gupta, Vishal, Kempton, Mark, Linz, William, Quail, Jeremy, Richman, Harry, Stier, Zachary
In this paper, we introduce a new notion of curvature on the edges of a graph that is defined in terms of effective resistances. We call this the Ricci--Foster curvature. We study the Ricci flow resulting from this curvature. We prove the existence o
Externí odkaz:
http://arxiv.org/abs/2403.01151
Autor:
Dawkins, Aleyah, Gupta, Vishal, Kempton, Mark, Linz, William, Quail, Jeremy, Richman, Harry, Stier, Zachary
Devriendt and Lambiotte recently introduced the \emph{node resistance curvature}, a notion of graph curvature based on the effective resistance matrix. In this paper, we begin the study of the behavior of the node resistance curvature under the opera
Externí odkaz:
http://arxiv.org/abs/2403.01037
Autor:
Liao, Luofeng, Kroer, Christian, Leonenkov, Sergei, Schrijvers, Okke, Shi, Liang, Stier-Moses, Nicolas, Zhang, Congshan
Online A/B testing is widely used in the internet industry to inform decisions on new feature roll-outs. For online marketplaces (such as advertising markets), standard approaches to A/B testing may lead to biased results when buyers operate under a
Externí odkaz:
http://arxiv.org/abs/2402.07322
Autor:
Kempf, Michael, Moser, Philipp, Tomoscheit, Maximilian, Schröer, Julian, Blancon, Jean-Christophe, Schwartz, Rico, Deb, Swarup, Mohite, Aditya, Stier, Andreas V., Finley, Jonathan J., Korn, Tobias
Publikováno v:
ACS nano 2023
We report temperature-dependent spectroscopy on the layered (n=4) two-dimensional (2D) Ruddlesden-Popper perovskite (BA)(MA)PbI. Helicity-resolved steady-state photoluminescence (PL) reveals no optical degree of polarization. Time-resolved PL shows a
Externí odkaz:
http://arxiv.org/abs/2309.09784