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Category: quantum physics – Page 238

Physicists predict exotic form of matter with potential for quantum computing

MIT physicists have shown that it should be possible to create an exotic form of matter that could be manipulated to form the qubit (quantum bit) building blocks of future quantum computers that are even more powerful than the quantum computers in development today.

The work builds on a discovery last year of materials that host electrons that can split into fractions of themselves but, importantly, can do so without the application of a magnetic field. The general phenomenon of electron fractionalization was first discovered in 1982 and resulted in a Nobel Prize.

That work, however, required the application of a magnetic field. The ability to create the fractionalized electrons without a magnetic field opens new possibilities for basic research and makes the materials hosting them more useful for applications.

Scientists Measure the Speed of Quantum Entanglement in a Groundbreaking Experiment

In a groundbreaking experiment, scientists have achieved the remarkable feat of measuring the speed of quantum entanglement for the first time. This milestone in quantum physics research unveils new insights into one of nature’s most perplexing phenomena, opening doors to advanced quantum technologies and a deeper understanding of the universe’s fundamental workings.

Rewriting Physics: MIT Quantum Computer Emulates Complex Electromagnetic Fields for the First Time

Quantum computers have the potential to simulate complex materials, allowing researchers to gain deeper insights into the physical properties that emerge from interactions among atoms and electrons. This may one day lead to the discovery or design of better semiconductors, insulators, or superconductors that could be used to make ever faster, more powerful, and more energy-efficient electronics.

But some phenomena that occur in materials can be challenging to mimic using quantum computers, leaving gaps in the problems that scientists have explored with quantum hardware.

To fill one of these gaps, MIT researchers developed a technique to generate synthetic electromagnetic fields on superconducting quantum processors. The team demonstrated the technique on a processor comprising 16 qubits.

Groundbreaking 8-Photon Qubit Chip Accelerates Quantum Computing

South Korean researchers have developed a groundbreaking photonic quantum circuit chip that promises to accelerate the global race in quantum computation.

This chip, capable of controlling up to eight photons, marks a significant leap forward in manipulating complex quantum phenomena like multipartite entanglement.

Breakthrough in photonic quantum circuit development.

Optoacoustic Entanglement in a Continuous Brillouin-Active Solid State System

Entanglement in hybrid quantum systems comprised of fundamentally different degrees of freedom, such as light and mechanics, is of interest for a wide range of applications in quantum technologies. Here, we propose to engineer bipartite entanglement between traveling acoustic phonons in a Brillouin active solid state system and the accompanying light wave. The effect is achieved by applying optical pump pulses to state-of-the-art waveguides, exciting a Brillouin Stokes process. This pulsed approach, in a system operating in a regime orthogonal to standard optomechanical setups, allows for the generation of entangled photon-phonon pairs, resilient to thermal fluctuations. We propose an experimental platform where readout of the optoacoustics entanglement is done by the simultaneous detection of Stokes and anti-Stokes photons in a two-pump configuration.

Quantum Leap: Innovative Breakthrough in Entangling Light and Sound

A new quantum entanglement approach by Max-Planck-Institute scientists uses Brillouin scattering to link photons with acoustic phonons, enhancing stability and operating at higher temperatures.

Quantum entanglement is essential for many cutting-edge quantum technologies, including secure quantum communication and quantum computing. Researchers at the Max Planck Institute for the Science of Light (MPL) have developed an efficient new method to entangle photons with acoustic phonons. Their approach overcomes one of the most significant challenges in quantum technology—vulnerability to external noise. This groundbreaking research, published on November 13 in Physical Review Letters, opens new possibilities for robust quantum systems.

Exploring Optoacoustic Entanglement

Scientists achieve first-ever elusive quantum spin liquid phenomenon

This behavior is driven by quantum entanglement, a phenomenon where the fates of individual electrons become intertwined.

Scientists have developed theoretical models describing quantum spin liquids for many years. However, creating these materials in a laboratory setting has been a challenge.

This is because, in most materials, electron spins tend to settle into an ordered state, similar to the alignment seen in conventional magnets.

New “Quantum Spin Liquid” Discovery Opens Doors to Uncharted Magnetic Realms

Scientists have pioneered a new material based on ruthenium that demonstrates complex, disordered magnetic properties akin to those predicted for quantum spin liquids, an elusive state of matter.

This breakthrough in the study indicates significant potential for the development of quantum materials that transcend classical physical laws, providing new insights and applications in the quantum realm.

Novel Quantum Materials

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