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Mehr zu #Ringeltauben:

Zeeman Degenerate Sideband Cooling
Qin Qichen, Qi Zhao, M. D. K. Lee, Zhao Zhang, N. Jayjong, K. J. Arnold, M. D. Barrett
https://arxiv.org/abs/2508.02026 https://

Zeeman Degenerate Sideband Cooling
We explore degenerate Raman sideband cooling in which neighboring Zeeman states of a fixed hyperfine level are coupled via a two-photon Raman transition. The degenerate coupling between $|F,m_F\rangle\rightarrow |F,m_F-1\rangle$ facilitates the removal of multiple motional quanta in a single cycle. This method greatly reduces the number of cooling cycles required to reach the ground state compared to traditional sideband cooling. We show that near ground state cooling can be achieved …

Fibonacci Numbers and Model-Complete Axiomatization of Presburger Arithmetic Expanded with a Beatty Sequence
Mohsen Khani, Ali N. Valizadeh, Afshin Zarei
https://arxiv.org/abs/2508.02303

Fibonacci Numbers and Model-Complete Axiomatization of Presburger Arithmetic Expanded with a Beatty Sequence
We introduce a recursive theory that completely axiomatizes the structure $\langle \mathbb{Z},<, +,f,0\rangle$ where $f$ is the function that maps each $x$ to the integer part of $φx $, with $φ$ the golden ratio. We prove that our axiomatization is model-complete in a language expanded with a function which we call the Fibonacci floor function, as defined in the introduction. We also present an improvement of the axiomatization of the structure $\langle \mathbb{Z}, +, f,0\rangle$ already stud…

On the analytical approach to infinite-mode Boson-Gaussian states
Jorge R. Bola\~nos-Serv\'in, Roberto Quezada, Josu\'e I. Rios-Cangas
https://arxiv.org/abs/2506.04537

On the analytical approach to infinite-mode Boson-Gaussian states
We develop an analytical approach to quantum Gaussian states in infinite-mode representation of the Canonical Commutation Relations (CCR's), using Yosida approximations to define integrability of possibly unbounded observables with respect to a state $ρ$ ($ρ$-integrability). It turns out that all elements of the commutative $*$-algebra generated by a possibly unbounded $ρ$-integrable observable $A$, denoted by $\langle A\rangle$, are normal and $ρ\, $-integrable. Besides, $\langle A\rangle$…

OmniDraft: A Cross-vocabulary, Online Adaptive Drafter for On-device Speculative Decoding
Ramchalam Kinattinkara Ramakrishnan, Zhaocong Yuan, Shaojie Zhuo, Chen Feng, Yicheng Lin, Chenzheng Su, Xiaopeng Zhang
https://arxiv.org/abs/2507.02659

OmniDraft: A Cross-vocabulary, Online Adaptive Drafter for On-device Speculative Decoding
Speculative decoding generally dictates having a small, efficient draft model that is either pretrained or distilled offline to a particular target model series, for instance, Llama or Qwen models. However, within online deployment settings, there are two major challenges: 1) usage of a target model that is incompatible with the draft model; 2) expectation of latency improvements over usage and time. In this work, we propose OmniDraft, a unified framework that enables a single draft model to op…

This https://arxiv.org/abs/2505.15915 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On spatial decay for coherent states of the Benjamin-Ono equation
We consider solutions to the Benjamin-Ono equation $$\partial_t u - H \partial_x^2 u = -\partial_x(u^2)$$ which are localized in a reference frame moving to the right with constant speed. We show that any such solution that decays at least like $\langle x\rangle^{-1-ε}$ for some $ε> 0$ in a comoving coordinate frame must in fact decay like $\langle x\rangle^{-2}$. In view of the explicit soliton solutions, this decay rate is sharp. Our proof has two main ingredients. The first is microloc…

Toukokuun keskilämpötila jäi alle pitkän ajan keskiarvon – koko kevät oli etelärannikolla poikkeuksellisen lämmin https://www.ilmatieteenlaitos.fi/tiedote/75WucvkvnucYQkCNjH4nrc

Toukokuun keskilämpötila jäi alle pitkän ajan keskiarvon – koko kevät
Toukokuu oli vertailukauden keskiarvoa koleampi, mikä rikkoi 12 kuukautta kestäneen keskiarvoa lämpimämpien kuukausien putken. Koko kevät eli maalis-toukokuu oli kuitenkin lähes koko maassa

So ein kleines bisschen Guerilla Gardening kann doch keine Sünde sein, oder? 🤔
Jemand hat anscheinend im Frühjahr am Rand der #Wiese auf einen alten #Maulwurfshügel ein paar #Ringelblumensamen

Gain on ground state of quantum system for truly $\mathcal{PT}$ symmetry
Bing-Bing Liu, Shi-Lei Su
https://arxiv.org/abs/2507.22728 https://arxiv.org/pdf/2…

Gain on ground state of quantum system for truly $\mathcal{PT}$ symmetry
For a truly $\mathcal{PT}$-symmetric quantum system, the conventional non-Hermitian Hamiltonian is $H = H_{\rm drive} -iγ|1\rangle\langle1| + iγ|0\rangle\langle0|$, where $Ω$ and $γ$ are real parameters. The three terms respectively represent coherent coupling, loss (on state $|1\rangle$), and gain (on state $|0\rangle$). However, realizing the gain term $+iγ|0\rangle\langle0|$ has remained an outstanding challenge for quantum system, especially on g…

Aus dem gelangweilten Leben einer #Ringeltaube:
Heute latsche ich einfach mal einen #Spitzpaprika platt. Ergibt keinen Sinn, hab aber grad nix zu tun.
#Balkongarten