Tag: quantum information


  • Entanglement Summoning Enables Bidirected Causal Links with Minimal Communication

    Entanglement Summoning Enables Bidirected Causal Links with Minimal Communication

    H2: Groundbreaking approach to distributed quantum states Quantum networks rely on distributing and preparing entangled states across distant locations. A recent study led by researchers at the University of Waterloo and collaborators introduces an approach they call entanglement summoning, which enables bidirected causal connections between nodes with limited communication resources. This development addresses a long-standing…

  • Multi-Horizon Black Holes Enable 2-Qubit Modelling, Unlocking Gravitational Physics

    Multi-Horizon Black Holes Enable 2-Qubit Modelling, Unlocking Gravitational Physics

    New Pathways in Quantum-Gravity Modelling In a field long defined by theoretical debates and experimental dreams, researchers are turning to a striking new idea: multi-horizon black holes could serve as practical laboratories for simulating simple quantum systems. At the center of this development are Schwarzschild–de Sitter black holes, cosmological solutions that feature multiple horizons arising…

  • Einstein-Rosen Bridges Reconciled With Direct-Sum Theory: A Unified View of Spacetime

    Einstein-Rosen Bridges Reconciled With Direct-Sum Theory: A Unified View of Spacetime

    Overview: A New Synthesis Bridges Gaps in Spacetime Ever since Einstein and Rosen introduced the concept of what we now call Einstein-Rosen (ER) bridges, physicists have debated whether such shortcuts through spacetime could exist in a way that preserves quantum coherence. The classic picture—a wormhole connecting distant regions of space—has been a staple of theoretical…

  • Multi-Horizon Black Holes Open Path to 2-Qubit System Modelling in Gravitational Physics

    Multi-Horizon Black Holes Open Path to 2-Qubit System Modelling in Gravitational Physics

    New Frontiers at the Gravity–Quantum Interface Researchers are turning to the complex spacetime structure of multi-horizon black holes to explore a novel approach to quantum information in gravitational settings. In particular, Schwarzschild-de Sitter (SdS) black holes, which feature both a black hole horizon and a cosmological horizon, provide a unique laboratory for simulating and understanding…

  • Einstein-Rosen Bridges Meet Direct-Sum Theory: A New Synthesis Unifying Spacetime and Reframing Time

    Einstein-Rosen Bridges Meet Direct-Sum Theory: A New Synthesis Unifying Spacetime and Reframing Time

    Revisiting the ER Bridge Concept Einstein-Rosen bridges, commonly known as ER bridges, have long stood as theoretical shortcuts linking disparate regions of spacetime. First conceptualized in the early 20th century, these constructs sparked enduring debate about the fabric of spacetime, quantum fields in curved geometries, and the true nature of causal connectivity. A fresh line…

  • Multi-Horizon Black Holes: A New Path to 2-Qubit Modelling and Gravitational Physics

    Multi-Horizon Black Holes: A New Path to 2-Qubit Modelling and Gravitational Physics

    Unlocking Gravity’s Quantum Door with Multi-Horizon Black Holes In the quest to unify gravity with quantum mechanics, researchers have turned to some of the universe’s most enigmatic objects: multi-horizon black holes. A growing body of work focusing on Schwarzschild–de Sitter spacetimes suggests that these cosmic laboratories may enable practical modelling of quantum systems that simulate…

  • Quantum Superposition Achieves Macroscopically Distinguishable States In Infinite Degrees Of Freedom

    Quantum Superposition Achieves Macroscopically Distinguishable States In Infinite Degrees Of Freedom

    Rethinking Quantum Boundaries: Macroscopic Superpositions across Infinite Degrees Of Freedom Quantum mechanics has long fascinated scientists with the idea of a particle existing in multiple states at once—a phenomenon known as quantum superposition. Traditionally, experiments have demonstrated superposition using a limited set of measurable properties, such as spin or polarization, on systems with a finite…

  • Diamond-Driven Time Crystals: A New Phase of Matter

    Diamond-Driven Time Crystals: A New Phase of Matter

    What is a time crystal—and why does it matter? Time crystals are a striking prediction in quantum physics: a state of matter where the system’s properties replay in time, even without energy input, in a rhythm that never settles into a conventional equilibrium. Unlike ordinary crystals, which repeat their structure in space, time crystals exhibit…