Time in Diaries of Court and Bakufu Officials in the late 13th Century

This monograph portrays temporality as it emerges from diaries produced by government officials during the late thirteenth century in Japan, thereby highlighting the complex and plural approaches to ‘time’ that these sources attest to

Preprint arXiv: 2209.05398 Submitted on 12 Sep 2022

We study kinetic magnetism for the Fermi-Hubbard models in triangular type lattices, including a zigzag ladder, four- and six-legged triangular cylinders and a full two-dimensional triangular lattice. We focus on the regime of strong interactions, $U\gg t$ and filling factors around one electron per site. For temperatures well above the hopping strength, the Curie-Weiss form of the magnetic susceptibility suggests effective antiferromagnetic correlations for systems that are hole doped with respect to $\nu=1$, and ferromagnetic correlations for systems with electron dopings. We show that these correlations arise from magnetic polaron dressing of charge carrier propagating in a spin incoherent Mott insulator. Effective interactions corresponding to these correlations can strongly exceed the magnetic super-exchange energy. In the case of hole doping, antiferromagnetic polarons originate from kinetic frustration of individual holes in a triangular lattice. In the case of electron doping, Nagaoka type ferromagnetic correlations are induced by propagating doublons. These results provide a theoretical explanation of recent experimental results in moire TMDC materials. To understand many-body states arising from antiferromagentic polarons at low temperatures, we study hole doped systems in finite magnetic fields. At low dopings and intermediate magnetic fields we find a magnetic polaron phase, separated from the fully polarized state by a metamagnetic transition. With decreasing magnetic field the system shows a tendency to phase separate, with hole rich regions forming antiferromagnetic spinbags. We demonstrate that direct observations of magnetic polarons in triangular lattices can be achieved in experiments with ultracold atoms, which allow measurements of three point hole-spin-spin correlations

Observation of Magnetic Proximity Effect Using Resonant Optical Spectroscopy of an Electrically Tunable MoSe2_2/CrBr3_3 Heterostructure

Van der Waals heterostructures combining two-dimensional magnetic and semiconducting layers constitute a promising platform for interfacing magnetism, electronics, and optics. Here, we use resonant optical reflection spectroscopy to the observe magnetic proximity effect in a gate-tunable MoSe$_2$/CrBr$_3$ heterostructure. High quality of the interface leads to a giant zero-field splitting of the K and K' valley excitons in MoSe$_2$, equivalent to an external magnetic field of 12 T, with a weak but distinct electric field dependence that hints at potential for electrical control of magnetization. The magnetic proximity effect allows us to use resonant optical spectroscopy to fully characterize the CrBr$_3$ magnet, determining the easy-axis coercive field, the magnetic anisotropy energy, and critical exponents associated with spin susceptibility and magnetization

Time-domain characterization and correction of on-chip distortion of control pulses in a quantum processor

We introduce Cryoscope, a method for sampling on-chip baseband pulses used to dynamically control qubit frequency in a quantum processor. We specifically use Cryoscope to measure the step response of the dedicated flux control lines of two-junction transmon qubits in circuit QED processors with the temporal resolution of the room-temperature arbitrary waveform generator producing the control pulses. As a first application, we iteratively improve this step response using optimized real-time digital filters to counter the linear-dynamical distortion in the control line, as needed for high-fidelity, repeatable one- and two-qubit gates based on dynamical control of qubit frequency

Time in Diaries of Court and Bakufu Officials in the late 13th Century

TIME IN DIARIES OF COURT AND BAKUFU OFFICIALS IN THE LATE 13TH CENTURY Time in Diaries of Court and Bakufu Officials in the late 13th Century / Ciorciaro, Alexandra (CC BY-NC-ND) (-

Murakami Haruki: Noruwei no mori - Eine gendertheoretische Analyse

In Murakami Harukis Roman Noruwei no mori aus dem Jahr 1987 spielen Geschlechterbeziehungen und Sexualität eine wichtige Rolle. Unter der umfangreichen Forschungsliteratur zu seinem Werk findet sich jedoch nur ein kleiner Teil, der sich diesem Roman aus gendertheoretischer Perspektive nähert. Im vorliegenden Buch wird der japanischsprachige, gendertheoretische Forschungsdiskurs zum Roman aufgearbeitet und nach den darin vertretenen Anliegen und theoretischen Rahmensetzungen befragt. Insbesondere werden oftmals nicht klar gekennzeichnete Bezugnahmen auf die US-amerikanische, feministische Theorie ausführlicher erläutert. Die Themen, die untersucht werden, sind vielfältig: von der Sprache, der Frage nach weiblicher Subjektivität, der Diskussion des Genres des Liebesromans, zu sexuellen Minderheiten und der japanischen Frauenbewegung. Im zweiten Teil wird die Darstellung von Sex in Noruwei no mori unter Berücksichtigung der zuvor präsentierten Argumente eingehend untersucht. Damit wird nicht nur die Frage nach der literarischen Darstellung von Geschlechterbeziehungen im Allgemeinen, sondern im Besonderen auch von Sexualität, ins Zentrum gerückt