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Medium

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SECON 2024: 10th annual Software Engineering Conference

  • Capital One recently wrapped up its 10th annual Software Engineering Conference (SECON), an internal conference for Capitain One's tech team. SECON began 10 years ago as a local gathering that's grown to become the company's largest and most highly-anticipated conference, with thousands of attendees and hundreds of presentations by top tech executives from around the globe.
  • At this year's conference, the planning team pivoted to a hybrid approach, combining both in-person and virtual programming and events to expand the conference's reach to more of Capital One's tech associates without geographical bias.
  • SECON provides a platform for some of the latest and greatest work from the company's tech team, ranging from product development to career tips. The conference serves as a way for technologists to share their work and drive cross-team learning.
  • Capital One's CIO and tech leadership team also roll out Capital One's tech vision and strategy during SECON, providing updates on the company's tech transformation.
  • The conference not only provides a powerful reminder for the talent Capital One has fostered internally, but also demonstrates the company's commitment to continuous learning and innovation.
  • SECON is an excellent platform for the company's technologists to hone their presentation skills, communicate their work, and network with other talent in the industry. The conference serves as a hub for continuous learning and fosters a company culture built on collaboration, innovation, and community involvement.
  • As Capital One looks to the future, the company will continue to build on the success of the SECON conference, further expanding its reach and impact.
  • Capital One is building and running serverless applications at a massive scale. The company is advancing the state-of-the-art in AI for financial services, and its technologists frequently share their work on the company's tech blog.

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Physicsworld

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Cosmic antimatter could be created by annihilating WIMPs

  • An international group of physicists has proposed a connection between Weakly Interacting Massive Particles (WIMPs) and the higher-than-expected flux of antimatter cosmic rays detected by NASA's Alpha Magnetic Spectrometer (AMS-02) on the International Space Station.
  • WIMPs are hypothetical particles that could be candidates for dark matter.
  • The researchers suggest that the unexpected detections of antinuclei by AMS-02 could provide insights into the nature of dark matter.
  • Their analysis indicates mixed implications for WIMPs, indicating that the current WIMP model may be incomplete.

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Physicsworld

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First look at prototype telescope for the LISA gravitational-wave mission

  • NASA has released the first images of a full-scale prototype for the six telescopes that will be included in the €1.5bn Laser Interferometer Space Antenna (LISA) mission.
  • LISA is a space-based gravitational-wave mission led by the European Space Agency and expected to launch in 2035.
  • The mission will consist of three satellites forming an equilateral triangle in space, with each side being 2.5 million kilometers long.
  • The prototype telescope, made of amber-colored glass-ceramic called Zerodur, was manufactured and assembled by L3Harris Technologies in New York.

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Physicsworld

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Orbital angular momentum monopoles appear in a chiral crystal

  • Physicists in Germany and Switzerland have discovered orbital angular momentum monopoles within chiral crystals.
  • Previously only theorized, the discovery could aid the development of energy-efficient memory devices.
  • Traditional electronic devices transfer energy through the charge of electrons, which is energy-intensive.
  • Orbitronics, however, exploits the electric currents generated by atomic nucleus OAM.
  • These materials can be hard to come by, but Niels Schröter, a physicist at the Max Planck Institute of Microstructure Physics in Halle, Germany, explains that certain chiral topological semi-metals generate isotropic orbital magnetisation.
  • The researchers' next task is to build prototype devices based on this, which could drive advancements in information technologies.
  • Ciruclarly polarized X-rays were directed at materials' sample, and angles and energies of the emitted electrons were used to identify the structure's electronic make-up.
  • One of the challenges was interpreting the CD-ARPES data, which was complicated.
  • The CD-ARPES rotation around the monopoles as photon energy was varied demonstrated the presence of monopoles in the material.
  • The researchers aim to establish a centre for chiral electronics with partners at the universities of Regensburg and Berlin.

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Physicsworld

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On the proper use of a Warburg impedance

  • Recent battery papers commonly employ interpretation models for which diffusion impedances are in series with interfacial impedance.
  • A general approach is presented that shows how the charge-transfer resistance and diffusion resistance are functions of the concentration of reacting species at the electrode surface.
  • The resulting impedance model incorporates diffusion impedances as part of the interfacial impedance.
  • Mark Orazem, a Distinguished Professor of Chemical Engineering, discussed these issues during an interactive Q&A session after his presentation.

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Brighter Side of News

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Revolutionary new theory finally unites quantum mechanics and Einstein’s theory of general relativity

  • In a groundbreaking new theory, researchers at University College London have proposed a novel perspective suggesting that spacetime may remain classical and unaffected by quantum mechanics.
  • Quantum mechanics and Einstein’s general theory of relativity have long been at odds with each other, and the unification of these two pillars of modern physics has remained an elusive quest.
  • The postquantum theory eliminates the notorious “measurement postulate” in quantum theory that posits measurements collapse quantum superpositions into definite states and replaces it with a concept where quantum superpositions naturally localize through their interaction with classical spacetime.
  • The researchers propose a groundbreaking experiment aimed at detecting fluctuations in mass over time, which has far-reaching implications for our understanding of gravity and quantum mechanics.
  • The postquantum theory offers a unique perspective, suggesting that the fundamental breakdown in predictability inherent to spacetime allows for information to be destroyed and resolving the black hole information paradox.
  • Another experimental proposal aims to verify the quantum nature of spacetime through a phenomenon called “gravitationally mediated entanglement.”
  • The postquantum theory has led to the elimination of the measurement postulate, and the proposed experiments seek to find the elusive balance shedding light on whether spacetime remains classical or succumbs to quantum mechanics at microscopic scales.
  • The core tenet of this theory is that spacetime remains classical, not subject to the constraints of quantum theory, and instead, quantum theory is tweaked to account for intrinsic unpredictability mediated by spacetime.
  • The postquantum theory challenges the status quo and offers a new perspective aiming to reconcile quantum mechanics and general relativity, and holds immense promise in advancing our understanding of the fundamental laws of nature.
  • The proposed experiments aim to detect random fluctuations in mass and verify the quantum nature of spacetime, and serve as a critical juncture in the ongoing debate between competing theories of quantum gravity.

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Popsci

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NASA unveils model of LISA, a satellite array for studying ripples in space-time

  • NASA has released new images of the full-scale prototypes of six telescopes slated to observe some of the universe’s tiniest fluctuations.
  • The mock-ups of the Laser Interferometer Space Antenna (LISA) offer glimpses of the design that will help astronomers discover groundbreaking insights into the universe.
  • LISA is a European Space Agency-led project that will measure the effects of cosmic gravitational waves by firing infrared laser beams between three spacecraft.
  • The prototypes, made from Zerodur and featuring gold-coated mirrors, are part of the meticulous planning to ensure the success of the mission set to launch around 2035.

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Physicsworld

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Multi-qubit entangled states boost atomic clock and sensor performance

  • Frequency measurements using multi-qubit entangled states have been performed by two independent groups in the US.
  • Atomic clocks are the most accurate timekeeping devices we have.
  • In an optical atomic clock, you’re comparing the oscillations of an atomic superposition with the frequency of a laser.
  • If, however, multiple atoms are placed into a Greenberger–Horne–Zeilinger (GHZ) entangled state and measured simultaneously, information can be acquired at a higher frequency without increasing the fundamental frequency of the transition.
  • The Colorado experiment used a novel, multi-qubit entangling technique to create GHZ states of Rydberg atoms in a programmable optical tweezer lattice.
  • Meanwhile in California, Manuel Endres and colleagues at Caltech also used GHZ states to do precision spectroscopy on the frequency of an atomic clock using Rydberg atoms in an optical tweezer array.
  • The Caltech work focused on mapping the output data onto “ancilla” qubits and demonstrating a universal set of quantum logic operations.
  • The research shows that GHZ states can improve precision and performance of atomic clocks and quantum sensors.
  • The work of both teams was praised as an important milestone towards building better atomic clocks and sensors.
  • The research is described in two papers in Nature (California paper, Colorado paper).

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Physicsworld

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Gems from the Physics World archive: Isaac Asimov

  • Isaac Asimov, known for his hard science fiction, wrote an article for Physics World in 1990.
  • Asimov's article was a review of the book 'Think of a Number' by Malcolm E Lines.
  • Asimov's work, including the Foundation trilogy and robot stories, has had a significant impact on popular imagination.
  • He was a renowned science fiction writer and science communicator.

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Fyfluiddynamics

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Waves Break Up Floating Rafts

  • Small particles can float on a liquid, held together as a raft through capillary action.
  • Rafts of graphite powder break up when waves jostle them.
  • Different mechanisms are responsible for raft break-up compared to sea ice break-up.
  • Insights from the study are valuable for understanding biofilms and some ice floes.

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Knowridge

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Walk or run in the rain? A physics-based approached to staying dry (or at least drier)

  • Caught outside without an umbrella as the sky opens up is a common phenomenon, and rushing isn't always going to alleviate the problem of staying dry. A new scientific approach explains the physics behind this. Vertical surfaces like a person's body will be hit by more raindrops as the speed increases, as drops appear to fall at an angle. Walking faster means encountering more drops per second, and reducing time spent in the rain, thereby balancing the two effects. Walking faster reduces the overall amount of water collected on horizontal surfaces like head and shoulders, except when stationary.
  • When standing still, rain only falls on the horizontal surface of the head and shoulders. As the walker moves, they'll receive raindrops that would have fallen in front, while now missing the drops that fall behind, creating a balance. The amount of rain received on the horizontal surfaces remains the same regardless of walking speed, but walking faster reduces the time spent in the rain, and ultimately the overall amount of water collected on horizontal surfaces will be less.
  • A mathematical approach to this is also presented with ρ representing the number of drops per unit volume and a denoting their vertical velocity. While moving, the number of drops reaching the vertical surface which was zero when stationary is equal to the number of drops contained within a horizontal cylinder with a base area of Sv and a length of v.T. This length represents the horizontal distance the drops travel during this time interval. In total, the walker receives a number of drops given by the expression: ρ(Sh·a + Sv·v)T.
  • The equation reveals two key pieces of information, firstly, the faster you move, the less water hits your head and shoulders. Secondly, the total amount of water hitting the vertical part of your body stays the same regardless of speed, because the shorter time spent in the rain is offset by encountering more raindrops per second. The author finally recommends that you walk faster and lean forward to try and remain dry.

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Interactions

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Join the global celebration of Dark Matter Day

  • Each year, around the end of October, particle physics laboratories, universities, and institutions around the world celebrate Dark Matter Day.
  • The international celebration aims to shed light on the mystery of dark matter, which makes up approximately 25 percent of the missing mass and energy in the universe.
  • Scientists continue to search for dark matter using various experiments and tools, such as detectors, particle beams, and telescopes.
  • Dark Matter Day is sponsored by the Interactions Collaboration, an international community of particle physics communication specialists.

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Physicsworld

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Negative triangularity tokamaks: a power plant plasma solution from the core to the edge?

  • Plasma Physics and Controlled Fusion journal is set to release a special issue on Negative Triangularity Tokamaks with a webinar discussing details surrounding this plasma shaping concept and its potential solution to power exhaust.
  • Researchers have found that negative triangularity plasmas have been observed to improve energy confinement significantly.
  • It can improve energy confinement by more than a factor of two whilst materially preventing H-mode.
  • It holds significant promise in terms of power plant engineering and fusion energy.
  • The confinement improvement should enable it to achieve similar confinement to a positive triangularity H-mode and avoid typical difficulties of damaging edge localized modes (ELMs) and the narrow scrape-off layer (SOL) width.
  • The negative triangularity approach offers an elegant and simple method that could reduce the potential problems facing power plant engineering concerning Tokamak's power exhaust.
  • Lack of certainty is the biggest deficiency facing researchers.
  • No Tokamak's in the world are configured to create negative triangularity plasmas and the concept has not been visited as much by the theory community.
  • Researchers will explore what is known and unknown about negative triangularity plasmas and assess its potential future as a power plant solution.
  • Several theoretical and experimental physicists will come together in a webinar to discuss the possibility of negative triangularity as a power plant solution.

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Physicsworld

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How a next-generation particle collider could unravel the mysteries of the Higgs boson

  • High-energy physics is looking to take the next step now that the Large Hadron Collider (LHC) is undergoing an upgrade towards the High-Luminosity LHC (HL-LHC). The question remains; what machine should follow that up and where should it be located?
  • One possibility is the Future Circular Collider (FCC) which is a 91 km circumference collider at CERN. But new technologies suggest more appealing options such as a muon collider.
  • The Higgs boson was discovered at the LHC in 2012, and research into its properties continues. Discovering how the Higgs boson interacts with all other particles in the Standard Model is still uncertain.
  • The HL-LHC will amass enormous amounts of data, allowing the understanding of how the Higgs interacts with lighter particles such as the muon and itself. A £1.1bn upgrade is aimed to complete the initiative by the end of the decade.
  • Following the HL-LHC, particle physicists believe the next machine should be a Higgs factory, the requirements of which could lead to a linear or circular particle collider.
  • Linear colliders have some advantages over their circular counterparts, such as using less energy which may make it cheaper to build. However, circular colliders allow more detectors in the ring and can be recirculated
  • The £12bn FCC is CERN’s design choice; it is a stepping stone to a proposed proton-proton machine and runs after the Higgs factory element come into play.
  • Muon colliders are another consideration. The particles are heavier and a collider that exploits them could offer the advantages of electron machines while propelling the project to the same energy ranges as a proton machine.
  • Muon colliders require significant R&D before construction but interestingly need less tunnel space than current designs. However, a massive global collaborative effort will still be needed for their creation.
  • Particle physics is at a major crossroads, and the next machine designed to study the enigmatic Higgs boson will need to unravel its mysteries.

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Minis

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OpenAI rolls out ChatGPT plugins, search and discover like never before

  • OpenAI has introduced ChatGPT plugins, a way to extend the scope of its chatbot language model. Plugins allow people to enter text commands, via typing or speech recognition, and have ChatGPT formulate a response using data from third-party services.
  • If this can be done accurately and quickly, without excessive cost, OpenAI may have found the successor of traditional web search.

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