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Entanglement is a key feature of quantum mechanics1–3, with applications in fields such as metrology, cryptography, quantum information and quantum computation4–8. It has been observed in a wide variety of systems and length scales, ranging from the microscopic9–13 to the macroscopic14–16. However, entanglement remains largely unexplored at the highest accessible energy scales. Here we report the
The Grobe-Eberly doublet phenomenon occurs in photoelectron distributions when a field dresses the remaining ion. Its manifestation is due to entanglement between a free electron and a hybrid state of light and matter. Direct detection of such entanglement is however not possible by coincidence schemes due to the dressing mechanism having an inconspicuous phase-correlation effect on the ion. Here,
We predict an unexplored type of ultrastrong coupling between atoms and intense ultraviolet light that leads to giant population oscillations on the attosecond timescale. These counter-rotating oscillations stem from the interference of energy-conserving and nonconserving photon absorption and emission processes via Rydberg states. They can be of similar amplitude as the elementary femtosecond Rab
Current advancements in molecular techniques for identifying multiple species from bulked soil samples have expanded our capacity for large-scale soil biodiversity assessments. However, these methods often lack validation and contextualization. Recent cross-European studies based on environmental DNA (eDNA) have reported unexpectedly high biodiversity in intensively managed agricultural soils comp
Climate neutrality of cities has emerged as a critical goal for sustainable urban development. This is typified by the mission in the European Union (EU) to achieve 100 climate neutral and smart cities by 2030. The idea of carbon or climate neutrality holds diverse interpretations. This paper investigates the dominant socio-technical imaginary for urban climate neutrality within the context of the
Objective To evaluate any association of the presence and severity of nine major symptoms (pain, tiredness, drowsiness, nausea, appetite, breathlessness, depression, anxiety, and perceived well-being) with sleep quality and duration in elderly men.Design and setting Cross-sectional analysis within the population-based VAScular and Chronic Obstructive Lung disease study (VASCOL) conducted in southe
BackgroundBreathlessness is a common and distressing symptom across a wide range of medical conditions. Different aspects (dimensions) of breathlessness can be assessed using the Multidimensional Dyspnoea Profile (MDP) and Dyspnoea-12 (D12) questionnaires. We aimed to examine whether the order of completing MDP and D12 affects the breathlessness responses in people with cardiorespiratory disease.M
In this podcast mini-series, we talk with members of the Breaking Up Silos project, which is a research project involving researchers from Sweden and The Netherlands and practitioners in the cities of Stockholm and Amsterdam. The project aims to increase the understanding of how the EU's mission for climate-neutral cities can break up silos and provide innovative governance approaches and tools t
In the active exploration of novel biobased semicrystalline polyesters to replace petrochemical plastics, AB-type aromatic condensation polymerizations are relatively rarely investigated but gain growing attention due to the straightforward synthesis of AB-type monomers from diverse asymmetric biobased feedstocks. However, achieving high molecular weights through AB-type melt polycondensations is
The need for large-scale production of highly accurate simulated event samples for the extensive physics programme of the ATLAS experiment at the Large Hadron Collider motivates the development of new simulation techniques. Building on the recent success of deep learning algorithms, variational autoencoders and generative adversarial networks are investigated for modelling the response of the cent
Hur skapar man samsyn och samarbete i en kommunal koncern där förvaltningar tidigare tänkte i stuprör? I Höganäs växte en kultur av gemensamt ansvar fram genom vardagliga berättelser och budgetprocessen. Den här artikeln berättar historien om hur kommunen etablerade en koncernledningsgrupp för att styra sin samlade verksamhet. Eller var det egentligen en koncernkultur som växte fram?
Årsredovisningens förvaltningsberättelse är mer än formaliteter. Den ska ge en tydlig bild av verksamheten och ge underlag för framtida beslut. Här finns stora möjligheter att höja kvaliteten ytterligare. Forskare vid Ekonomihögskolan, Lunds universitet, ger konkreta tips för hur berättelsen kan bli tydligare och mer användbar.
Försörjningsberedskap är återigen centralt för Sverige och man inser att samhällsviktiga försörjningskedjor består av såväl olika slags myndigheter som privata, ofta globala, företag. För att höja beredskap, behövs ett mer gemensamt arbete med risker och kontinuitetshantering i försörjningskedjor. Det finnas dock stora samverkansutmaningar i detta privat-offentliga gränssnitt. Artikeln beskriver e
With the projected increase in the number of hydrogen-fueled trucks, it can beexpected that it will become more common for such vehicles to be involved in road collisions. Even if hydrogen vehicles are designed with a quick-closing valve on tanks in accordance with UN/ECE R134, a small volume of hydrogen will be contained downstream of this valve and in the fuel-cell recirculation system and thereWith the projected increase in the number of hydrogen-fueled trucks, it can be expected that it will become more common for such vehicles to be involved in road collisions. Even if hydrogen vehicles are designed with a quick-closing valve on tanks in accordance with UN/ECE R134, a small volume of hydrogen will be contained downstream of this valve and in the fuel-cell recirculation system and ther
Background and hypothesis Knowledge regarding access to first kidney transplantation (KT) and subsequent KT in patients commencing kidney replacement therapy (KRT) in childhood is limited. Methods Using European Renal Association (ERA) Registry data, we investigated European patients who started KRT below 20 years of age between 1978 and 2019. Access and determinants to first, second, and third KT
One of the key skills of any scientist is noticing what’s going on. Both in the experiment one’s performing and in one’s data: is there something interesting, reason to doubt one’s data or suspect that one’s theoretical description is insufficient? Many experiments developed for undergraduate teaching still focus on quantitative evaluation. Here we take a different approach where careful observati
