• Researchers develop general framework for designing quantum sensors

    Updated: 2024-07-30 17:49:31
    Researchers have designed a protocol for harnessing the power of quantum sensors. The protocol could give sensor designers the ability to fine-tune quantum systems to sense signals of interest, creating sensors that are vastly more sensitive than traditional sensors.

  • Researchers trap atoms, forcing them to serve as photonic transistors

    Updated: 2024-07-29 21:33:22
    Researchers have developed a means to realize cold-atom integrated nanophotonic circuits.

  • Optical fibers fit for the age of quantum computing

    Updated: 2024-07-29 14:42:27
    A new generation of specialty optical fibers has been developed by physicists to cope with the challenges of data transfer expected to arise in the future age of quantum computing.

  • 'Kink state' control may provide pathway to quantum electronics

    Updated: 2024-07-25 23:39:11
    The key to developing quantum electronics may have a few kinks. According to researchers, that's not a bad thing when it comes to the precise control needed to fabricate and operate such devices, including advanced sensors and lasers. The researchers fabricated a switch to turn on and off the presence of kink states, which are electrical conduction pathways at the edge of semiconducting materials.

  • Quantum sensor for the atomic world

    Updated: 2024-07-25 19:47:59
    In a scientific breakthrough, an international research team has developed a quantum sensor capable of detecting minute magnetic fields at the atomic length scale. This pioneering work realizes a long-held dream of scientists: an MRI-like tool for quantum materials.

  • Spin qubits go trampolining

    Updated: 2024-07-25 19:46:03
    Researchers have developed somersaulting spin qubits for universal quantum logic. This achievement may enable efficient control of large semiconductor qubit arrays. The research group recently published their demonstration of hopping spins and somersaulting spins.

  • Physicists develop new theory describing the energy landscape formed when quantum particles gather together

    Updated: 2024-07-17 04:10:39
    An international team of physicists has proven new theorems in quantum mechanics that describe the 'energy landscapes' of collections of quantum particles. Their work addresses decades-old questions, opening up new routes to make computer simulation of materials much more accurate. This, in turn, may help scientists design a suite of materials that could revolutionize green technologies.

  • A breakthrough on the edge: One step closer to topological quantum computing

    Updated: 2024-07-10 17:09:19
    Researchers have achieved a significant breakthrough in quantum materials, potentially setting the stage for advancements in topological superconductivity and robust quantum computing.

  • A 2D device for quantum cooling

    Updated: 2024-07-05 14:11:38
    Engineers have created a device that can efficiently convert heat into electrical voltage at temperatures lower than that of outer space. The innovation could help overcome a significant obstacle to the advancement of quantum computing technologies, which require extremely low temperatures to function optimally.

  • A genetic algorithm for phononic crystals

    Updated: 2024-07-03 17:17:50
    Researchers tested phononic nanomaterials designed with an automated genetic algorithm that responded to light pulses with controlled vibrations. This work may help in the development of next-generation sensors and computer devices.

  • Neutrons on classically inexplicable paths

    Updated: 2024-07-02 17:55:16
    Is nature really as strange as quantum theory says -- or are there simpler explanations? New neutron measurements prove: It doesn't work without the strange properties of quantum theory.

  • Visual explanations of machine learning models to estimate charge states in quantum dots

    Updated: 2024-06-28 03:26:23
    To form qubit states in semiconductor materials, it requires tuning for numerous parameters. But as the number of qubits increases, the amount of parameters also increases, thereby complicating this process. Now, researchers have automated this process, overcoming a significant barrier to realizing quantum computers.

  • Understanding quantum states: New research shows importance of precise topography in solid neon qubits

    Updated: 2024-06-26 21:35:54
    A new study shows new insight into the quantum state that describes the condition of electrons on an electron-on-solid-neon quantum bit, information that can help engineers build this innovative technology.

  • Researchers discover new flat electronic bands, paving way for advanced quantum materials

    Updated: 2024-06-26 00:59:43
    Scientists predict the existence of flat electronic bands at the Fermi level, a finding that could enable new forms of quantum computing and electronic devices.

  • Sentiment Analysis Model Integration Using Combinatorial Fusion Analysis

    Updated: 2024-06-19 13:33:16
    Home Search Browse Collections My Account About Digital Commons Network™ Skip to main content Home About FAQ My Account Home DISSERTATIONS AAI31298306 Sentiment Analysis Model Integration Using Combinatorial Fusion Analysis Sean Patten Fordham University Abstract This thesis explores the efficacy of the Combinatorial Fusion Analysis CFA a method for calculating the diversity of model outputs based on rank-score diversity , also known as cognitive diversity , of machine learning models and which differs significantly from traditional measures of model diversity and independence by incorporating the Euclidean score space with the non-Euclidean rank space , in combining machine learning models for natural language processing . This is done primarily through integrating the results of

  • Breakthrough may clear major hurdle for quantum computers

    Updated: 2024-06-18 15:55:42
    The potential of quantum computers is currently thwarted by a trade-off problem. Quantum systems that can carry out complex operations are less tolerant to errors and noise, while systems that are more protected against noise are harder and slower to compute with. Now a research team has created a unique system that combats the dilemma, thus paving the way for longer computation time and more robust quantum computers.

  • Quantum entanglement measures Earth rotation

    Updated: 2024-06-14 18:19:36
    Researchers carried out a pioneering experiment where they measured the effect of the rotation of Earth on quantum entangled photons. The work represents a significant achievement that pushes the boundaries of rotation sensitivity in entanglement-based sensors, potentially setting the stage for further exploration at the intersection between quantum mechanics and general relativity.

  • A liquid crystal source of photon pairs

    Updated: 2024-06-14 18:19:16
    Spontaneous parametric down-conversion (SPDC), as a source of entangled photons, is of great interest for quantum physics and quantum technology, but so far it could be only implemented in solids. Researchers have demonstrated, for the first time, SPDC in a liquid crystal. The results open a path to a new generation of quantum sources: efficient and electric-field tunable.

  • Quantum data assimilation: A quantum leap in weather prediction

    Updated: 2024-06-13 18:04:01
    Data assimilation is an important mathematical discipline in earth sciences, particularly in numerical weather prediction (NWP). However, conventional data assimilation methods require significant computational resources. To address this, researchers developed a novel method to solve data assimilation on quantum computers, significantly reducing the computation time. The findings of the study have the potential to advance NWP systems and will inspire practical applications of quantum computers for advancing data assimilation.

  • Quantum dots and metasurfaces: Deep connections in the nano world

    Updated: 2024-06-12 15:33:50
    A team has developed printable, highly efficient light-emitting metasurfaces.

  • New technique could help build quantum computers of the future

    Updated: 2024-06-11 17:04:08
    Researchers have demonstrated a new method that could enable the large-scale manufacturing of optical qubits. The advance could bring us closer to a scalable quantum computer.

  • Groundbreaking progress in quantum physics: How quantum field theories decay and fission

    Updated: 2024-06-03 15:43:24
    An international research team has sparked interest in the scientific community with results in quantum physics. In their current study, the researchers reinterpret the Higgs mechanism, which gives elementary particles mass and triggers phase transitions, using the concept of 'magnetic quivers.'

  • Theoretical quantum speedup with the quantum approximate optimization algorithm

    Updated: 2024-05-29 20:24:24
    Researchers demonstrated a quantum algorithmic speedup with the quantum approximate optimization algorithm, laying the groundwork for advancements in telecommunications, financial modeling, materials science and more.

  • More than spins: Exploring uncharted territory in quantum devices

    Updated: 2024-05-24 15:53:19
    Many of today's quantum devices rely on collections of qubits, also called spins. These quantum bits have only two energy levels, the '0' and the '1'. However, spins in real devices also interact with light and vibrations known as bosons, greatly complicating calculations. Researchers now demonstrate a way to describe spin-boson systems and use this to efficiently configure quantum devices in a desired state.

  • A simple quantum internet with significant possibilities

    Updated: 2024-05-15 04:27:12
    It's one thing to dream up a quantum internet that could send hacker-proof information around the world via photons superimposed in different quantum states. It's quite another to physically show it's possible. That's exactly what physicists have done, using existing Boston-area telecommunication fiber, in a demonstration of the world's longest fiber distance between two quantum memory nodes to date.

  • New quantum sensing scheme could lead to enhanced high-precision nanoscopic techniques

    Updated: 2024-05-03 23:31:58
    Researchers have unveiled a quantum sensing scheme that achieves the pinnacle of quantum sensitivity in measuring the transverse displacement between two interfering photons.

  • Significant new discovery in teleportation research -- Noise can improve the quality of quantum teleportation

    Updated: 2024-05-02 15:38:05
    Researchers succeeded in conducting an almost perfect quantum teleportation despite the presence of noise that usually disrupts the transfer of quantum state.

  • The big quantum chill: Scientists modify common lab refrigerator to cool faster with less energy

    Updated: 2024-05-01 23:36:39
    Scientists have dramatically reduced the time and energy required to chill materials to temperatures near absolute zero. Their prototype refrigerator could prove a boon for the burgeoning quantum industry, which widely uses ultracold materials.

  • Scientists tune the entanglement structure in an array of qubits

    Updated: 2024-04-24 22:24:42
    A new technique can generate batches of certain entangled states in a quantum processor. This advance could help scientists study the fundamental quantum property of entanglement and enable them to build larger and more complex quantum processors.

  • Condensed matter physics: Novel one-dimensional superconductor

    Updated: 2024-04-24 15:14:47
    In a significant development in the field of superconductivity, researchers have successfully achieved robust superconductivity in high magnetic fields using a newly created one-dimensional (1D) system. This breakthrough offers a promising pathway to achieving superconductivity in the quantum Hall regime, a longstanding challenge in condensed matter physics.

  • Lead-vacancy centers in diamond as building blocks for large-scale quantum networks

    Updated: 2024-04-24 15:08:56
    A lead-vacancy (PbV) center in diamond has been developed as a quantum emitter for large-scale quantum networks by researchers. This innovative color center exhibits a sharp zero-phonon-line and emits photons with specific frequencies. The PbV color center stands out among other diamond color centers due to its ability to maintain optical properties at relatively high temperatures of 16 K. This makes it well-suited for transferring quantum information in large-scale quantum networks.

  • Manipulating the geometry of 'electron universe' in magnets

    Updated: 2024-04-23 15:31:04
    Researchers have discovered a unique property, the quantum metric, within magnetic materials, altering the 'electron universe' geometry. This distinct electric signal challenges traditional electrical conduction and could revolutionize spintronic devices.

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