Tootfinder

Harvard now offers free online courses on how the government is *supposed* to work.
https://pll.harvard.edu/subject/government

Error recovery protocols within metastable Decoherence-Free Subspaces
Thomas Botzung, Eliana Fiorelli
https://arxiv.org/abs/2506.19631 https://

Error recovery protocols within metastable Decoherence-Free Subspaces
Open quantum systems governed by quantum master equations can exhibit quantum metastability, where decoherence-free subspaces (DFS) remain approximately invariant for long transient times before relaxing to a unique steady state. In this work, we explore the use of such metastable DFS as code spaces for passive quantum error correction. We focus on two representative models: a two-qubit system under collective dissipation, and a nonlinear driven-dissipative Kerr resonator. After characterizing …

Edmund Burke, describing DOGE.

A young female bear caused a stir after wandering out of the forest and into the leafy suburbs of the Lithuanian capital.
For two days, the brown bear ambled through the neighborhoods of Vilnius,
trotted across highways and explored backyards
— all while being chased by onlookers with smartphones and, eventually, drones.
The government then issued a permit for the bear to be shot and killed.
That did not go down well with Lithuania’s hunters who refused, aware …

Lithuanian hunters refuse government request to shoot a wild bear in the capital
Lithuanian hunters have refused to shoot a wild bear that was spotted roaming around the Lithuanian capital of Vilnius and criticized the government for issuing a permit to kill a member of the protected species. The Lithuanian Association of Hunters and Fishermen says in a statement it is shocked by the decision of the Environment Ministry to shoot the bear. The bear now seems to be out of danger as it was spotted on Wednesday walking through forested areas well outside the city. A government …

Mean-field and Monte Carlo Analysis of Multi-Species Dynamics of agents
Eduardo Velasco Stock, Roberto da Silva, Sebastian Gon\c{c}alves
https://arxiv.org/abs/2506.16717

Mean-field and Monte Carlo Analysis of Multi-Species Dynamics of agents
We propose a mean-field (MF) approximation for the recurrence relation governing the dynamics of $m$ species of particles on a square lattice, and we simultaneously perform Monte Carlo (MC) simulations under identical initial conditions to emulate the intricate motion observed in environments such as subway corridors and scramble crossings in large cities. Each species moves according to transition probabilities influenced by its respective static floor field and the state of neighboring cells.…

Numerical solution of the Lindblad master equation using the Runge-Kutta method implemented in Python
Leonardi Hern\'andez S\'anchez, Iv\'an Alejandro Bocanegra Garay, Ariel Flores Rosas, Ir\'an Ramos Prieto, Francisco Soto Eguibar, H\'ector Manuel Moya Cessa
https://arxiv.org/abs/2506.19238

Numerical solution of the Lindblad master equation using the Runge-Kutta method implemented in Python
The dynamics of open quantum systems is governed by the Lindblad master equation, which provides a consistent framework for incorporating environmental effects into the evolution of the system. Since exact solutions are rarely available, numerical methods become essential tools for analyzing such systems. This article presents a step-by-step implementation of the fourth-order Runge-Kutta method in Python to solve the Lindblad equation for a single quantized field mode subject to decay. A cohere…

Trump officially violates Emoluments clause by taking a bribe… again.
https://flipboard.com/@npr/u.s.-news-aspd61boz/-/a-WZ2HYSHPR3WMNXB1Zz2RYw:a:3195441-/0

Trump administration officially accepts jet from Qatar for use as Air Force One
The United States has officially accepted a Boeing 747-8 luxury jetliner as a gift from the Qatari government, and the Air Force has been tasked with upgrading it to be used as a new plane for President Trump, according to an Air Force spokesperson. The spokesperson, who spoke on the condition of …

The dominant role of jetting in micron- and sub-micron sea spray produced by bubble bursting: a revised model and comparison with measurements
Alfonso M. Ganan-Calvo, Miguel A. Herrada, Jose M. Lopez-Herrera
https://arxiv.org/abs/2506.17836

The dominant role of jetting in micron- and sub-micron sea spray produced by bubble bursting: a revised model and comparison with measurements
The primary physical mechanism governing the production of sub-micron sea spray aerosols (SSA) -- specifically the competition between film and jet droplets from bubble bursting -- has remained a subject of intense debate. This work presents a revised, first-principles model that establishes the overwhelming dominance of jetting for producing micron and sub-micron aerosols. Our approach first rules out the film droplet mechanism as a primary contributor for this size range by demonstrating thro…

Trump says Elon Musk "went CRAZY" and that canceling his government contracts is "the easiest way to save money", as their One Big Beautiful bill feud escalates (Kevin Breuninger/CNBC)
https://www.cnbc.com/2025/06/05/trump-musk-crazy-…

Trump says Musk went 'CRAZY,' suggests cutting government contracts for his companies
Musk is the CEO of Tesla and SpaceX and founded The Boring Company, xAI and Neuralink. He also owns the social media platform X.