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The North Carolina Senate voted along party lines Wednesday to
💥ban anyone from wearing masks in public for health reasons, 💥following an emotional debate about the wisdom of the proposal.
Republican supporters of the ban said it would help police crack down on protesters who wear masks
— which some lawmakers called a growing concern, saying demonstrators are abusing Covid-19 pandemic-era norms to wear masks that hide their identities.
“It’s about time that the crazin…

@arXiv_condmatstrel_bot@mastoxiv.page
2024-06-18 07:11:31

Pseudogap with Fermi arcs and Fermi pockets in half-filled twisted transition metal dichalcogenides
Yong-Yue Zong, Zhao-Long Gu, Jian-Xin Li
arxiv.org/abs/2406.11374 arxiv.org/pdf/2406.11374
arXiv:2406.11374v1 Announce Type: new
Abstract: Twisted transition metal dichalcogenides are a new platform for realizing strongly correlated physics with high tunability. Recent transport experiments have reported the realization of a Mott insulator, its bandwidth-driven evolution to a metal, and the strange metal behavior in proximity to the transition via the tuning of a displacement field in twisted $\mathrm{WSe_2}$($\mathrm{tWSe_2}$) fixed at half filling. However, the nature of the correlated states and the related Mott physics involved in the whole process remain to be determined. Here, we unveil theoretically the evolution of the ground state of the half-filled $\boldsymbol{\mathrm{moir\acute{e}}}$ Hubbard model as applied to $\mathrm{tWSe_2}$, transiting from a pseudogap state with Fermi arcs to a 120$^\circ$ Ne$\boldsymbol{\acute{\mathrm{e}}}$l ordered Mott insulator, then to another pseudogap state with Fermi pockets, and eventually to a Fermi liquid via a Lifshitz transition. The pseudogap phases are definitively identified by the vanishing of quasiparticle weights over an extended region of the free Fermi surface, with the remaining parts forming disconnected Fermi arcs or pockets that contain well-defined quasiparticles. The loss of quasiparticle weights in the pseudogap phases indicates the breakdown of Landau's Fermi liquid theory. We demonstrate that the emergence of the Fermi arcs/pockets results from the electronic structure reconstruction driven by strong electron correlations, marked by the existence of Luttinger surface enclosed by the zeros of single-particle Green's function. This work reveals the fundamental aspects of the Mottness in $\boldsymbol{\mathrm{moir\acute{e}}}$ systems and will stimulate the advance of the direct probes of the Fermi surface and quasiparticles beyond transports, such as angle-resolved photoemission spectroscopy (ARPES) and scanning tunnelling microscopy (STM) experiments.

@vni@tldr.nettime.org
2024-06-17 23:15:45

From Saturday, June 15, and in parallel to the exhibition Thomas Arslan at n.b.k., Arsenal will present a comprehensive retrospective of Thomas Arslan’s films! It explores the film aesthetics that have influenced Arslan and is accompanied by introductions and discussions.
instagram.com/p/C8JrlZnIf-u/?i

Neuer Berliner Kunstverein on Instagram: "From Saturday, June 15, and in parallel to the exhibition Thomas Arslan at n.b.k., Arsenal will present a comprehensive retrospective of Thomas Arslan’s films! It explores the film aesthetics that have influenced Arslan and is accompanied by introductions and discussions. These are the dates for June (the program continues in July & August, find the full schedule on our website!) Unless otherwise stated, all films are by Thomas Arslan, in German, and subtitled in English: Sat, June 15, 8 pm Am Rand (1991); Am Rand Revisited (2024); Im Sommer (Die sichtbare Welt) (1992) Followed by a discussion with Thomas Arslan, moderated by Birgit Kohler Sun, June 16, 8 pm Preview: Verbrannte Erde (2024) Followed by a discussion with Thomas Arslan, moderated by Birgit Kohler Tue, June 18, 8 pm Mach die Musik leiser (1994) Introduction: Diedrich Diederichsen Thu, June 20, 8 pm Geschwister – Kardeşler (1996) Introduction: Till Kadritzke Sat, June 22, 7 pm The Cool World (by Shirley Clarke, 1963, original English version without subtitles) Introduction: Thomas Arslan Wed, June 26, 8 pm Dealer (1998) Introduction: Michael Baute Fri, June 28, 8 pm Der schöne Tag (2001) Followed by a conversation with Serpil Turhan, moderated by Birgit Kohler The film series is curated by Birgit Kohler (Head of Programming Arsenal – Institute for Film and Video Art in Berlin). Venue: Kino Arsenal at Filmhaus am Potsdamer Platz, Potsdamer Str. 2, 10785 Berlin Part of the exhibition Thomas Arslan June 8 – August 4, 2024 Tue–Sun 12–6 pm / Thu 12–8 pm @neuerberlinerkunstverein A project in cooperation with the Arsenal – Institute for Film and Video Art. Funded by Medienboard Berlin-Brandenburg. Images: Film stills Verbrannte Erde (2024); Geschwister – Kardeşler (1997); Dealer (1999); Der schöne Tag (2001) © Thomas Arslan #neuerberlinerkunstverein #nbkberlin #thomasarslan #berlinfilm #berlincinema @neuerberlinerkunstverein @arsenalberlin @medienboard @piffl_medien @dffb_berlin #machdiemusikleiser #geschwister @tameryigitberlin @koolsavas #kardesler #dealer @idiluener #derschoenetag @florianstetter_official #verbrannteerde @marie_leuenberger_official @alexanderfehling #berlinerschule #berlin"
59 likes, 0 comments - neuerberlinerkunstverein on June 13, 2024: "From Saturday, June 15, and in parallel to the exhibition Thomas Arslan at n.b.k., Arsenal will present a comprehensive retrospective of...".

@mgorny@social.treehouse.systems
2024-05-17 19:06:47

Autism spectrum condition, attachment to objects, "minimalism"
I could say that I'm a minimalist. Much like many other of my characteristics, this one stems from the autism spectrum.
Many people in the spectrum show emotional attachment to objects. Sometimes you could think of it as "hoarding", but for me it's mostly about strong negative feelings when something breaks, when I need to throw it away (interesting enough, I don't really mind giving it away, so others could use it, just trashing).
The simplest way to limit these negative feelings… is to have very little stuff. Don't buy, nor take, stuff that you don't need. Limit yourself to things that are really important, and ideally wait some more, look around, maybe it will turn out you didn't need it after all.
I don't have any plushies (anymore). Most of my old hardware were given "into good hands". Some is still waiting for a good way how to revive it. There are no ornaments over my walls, just an old clock that belonged to my grandmother, one from the "сделано в СССР" era. Its scary how outdated my smartphone firmware is.
I suppose some people will think it's an unhappy life. I don't really know. I don't think I've ever enjoyed mindless consumption. Perhaps as a child — but the excitation of novelty usually quickly gave way to disappointment.
And gifts, gifts are something I truly hate. But it's a separate topic, another kind of trauma.
#ActuallyAutistic #minimalism

@kcarruthers@mastodon.social
2024-05-18 01:47:58

If you haven’t noticed that many of the big data breaches are now often via third parties then you aren’t paying attention. Third party risk is super high now. You need to pay attention to their cybersecurity now! infosec.exchange/@DevaOnBreach

@cowboys@darktundra.xyz
2024-06-17 16:29:29

Damone Clark reveals advice for DeMarvion Overshown in return from injury yardbarker.com/nfl/articles/da

@bodhidave@mstdn.social
2024-06-17 23:31:19

I've long been fond of the phrase, "the bottom falling out of the bucket" as a reference in #Zen to a kind of irreversible awakening experience. It's used in the 12th c. *Blue Cliff Record.* This story appears to be from a century later, but it's nice (from Paul Reps' *Zen Flesh, Zen Bones*):

When the nun Chiyono studied Zen under Bukko of Engaku she was unable to attain the fruits of meditation for a long time.
At last one moonlit night she was carrying water in an old pail bound with bamboo. The bamboo broke and the bottom fell out of the pail, and at that moment Chiyono was set freel
In commemoration, she wrote a poem:

In this way and that I tried to save the old pail 
Since the bamboo strip was weakening and about
to break
Until at last the bottom fell out. 
No more water in th…
@arXiv_condmatstrel_bot@mastoxiv.page
2024-06-18 07:11:31

Pseudogap with Fermi arcs and Fermi pockets in half-filled twisted transition metal dichalcogenides
Yong-Yue Zong, Zhao-Long Gu, Jian-Xin Li
arxiv.org/abs/2406.11374 arxiv.org/pdf/2406.11374
arXiv:2406.11374v1 Announce Type: new
Abstract: Twisted transition metal dichalcogenides are a new platform for realizing strongly correlated physics with high tunability. Recent transport experiments have reported the realization of a Mott insulator, its bandwidth-driven evolution to a metal, and the strange metal behavior in proximity to the transition via the tuning of a displacement field in twisted $\mathrm{WSe_2}$($\mathrm{tWSe_2}$) fixed at half filling. However, the nature of the correlated states and the related Mott physics involved in the whole process remain to be determined. Here, we unveil theoretically the evolution of the ground state of the half-filled $\boldsymbol{\mathrm{moir\acute{e}}}$ Hubbard model as applied to $\mathrm{tWSe_2}$, transiting from a pseudogap state with Fermi arcs to a 120$^\circ$ Ne$\boldsymbol{\acute{\mathrm{e}}}$l ordered Mott insulator, then to another pseudogap state with Fermi pockets, and eventually to a Fermi liquid via a Lifshitz transition. The pseudogap phases are definitively identified by the vanishing of quasiparticle weights over an extended region of the free Fermi surface, with the remaining parts forming disconnected Fermi arcs or pockets that contain well-defined quasiparticles. The loss of quasiparticle weights in the pseudogap phases indicates the breakdown of Landau's Fermi liquid theory. We demonstrate that the emergence of the Fermi arcs/pockets results from the electronic structure reconstruction driven by strong electron correlations, marked by the existence of Luttinger surface enclosed by the zeros of single-particle Green's function. This work reveals the fundamental aspects of the Mottness in $\boldsymbol{\mathrm{moir\acute{e}}}$ systems and will stimulate the advance of the direct probes of the Fermi surface and quasiparticles beyond transports, such as angle-resolved photoemission spectroscopy (ARPES) and scanning tunnelling microscopy (STM) experiments.

Most migrants likely wouldn’t say they’re fleeing climate change.
They’re escaping war, economic uncertainty, social instability and the like.
But climate change multiplies those threats.
It’s not a coincidence that 95% of conflict refugees in 2020 came from global-warming hot spots.
A 2021 study by researchers at the National Autonomous University of Mexico found the movement of low-income farmers from Mexico to the U.S. not only tripled during times of drought but …

Most migrants likely wouldn’t say they’re fleeing climate change.
They’re escaping war, economic uncertainty, social instability and the like.
But climate change multiplies those threats.
It’s not a coincidence that 95% of conflict refugees in 2020 came from global-warming hot spots.
A 2021 study by researchers at the National Autonomous University of Mexico found the movement of low-income farmers from Mexico to the U.S. not only tripled during times of drought but …