Quantum Optics Seminar: Photonic graph state generation from spin‐photon interfaces
Sophia Economou and her student, Bikun LiPhotonic graph states are of interest in quantum communication networks and photonic quantum computing.
Power-optimal, stabilized entangling gate between trapped-ion qubits
npj Quantum Information, Published online: 08 October 2021; doi:10.1038/s41534-021-00489-w Power-optimal, stabilized entangling gate between trapped-ion qubits
Quantum networking milestone in real-world environment
A team has developed and demonstrated a novel, fully functional quantum local area network, or QLAN, to enable real-time adjustments to information shared with geographically isolated systems using entangled photons passing through optical fiber. Read […]
Quantum Information & Computing Meeting: Simulatability phase transitions in dynamics of locally interacting open quantum spin systems
Rahul Trivedi (MPQ):For a continuous time model of spins on d-dimensional lattices with local interaction interrupted by entanglement breaking noise occurring as per poissonian process, I will show that a classical polynomial time algorithm can […]
Multipartite entanglement of billions of motional atoms heralded by single photon
npj Quantum Information, Published online: 05 October 2021; doi:10.1038/s41534-021-00476-1 Multipartite entanglement of billions of motional atoms heralded by single photon
Induced flaws in quantum materials could enhance superconducting properties
In a surprising discovery, an international team of scientists found that deformations in quantum materials that cause imperfections in the crystal structure can actually improve the material’s superconducting and electrical properties. Read More Quantum Computers […]
Foundational step shows quantum computers can be better than the sum of their parts
Researchers have experimentally demonstrated, for the first time, that an assembly of quantum computing pieces — a logical qubit — can be better than the worst parts used to make it. The team shared how […]
How flawed diamonds ‘lead’ to flawless quantum networks
Lead-based vacancy centers in diamonds that form after high-pressure and high-temperature treatment are ideal for quantum networks, find scientists. The modified crystal system could also find applications in spintronics and quantum sensors. Read More Quantum […]
When soap bubbles turn to soup
With the help of high-resolution microscopy, scientists at MPQ successfully observed the transformation of a metal of magnetic polarons into a normal Fermi liquid. Furthermore, the team was able to measure novel correlations that could […]
Experimental study of quantum coherence decomposition and trade-off relations in a tripartite system
npj Quantum Information, Published online: 01 October 2021; doi:10.1038/s41534-021-00485-0 Experimental study of quantum coherence decomposition and trade-off relations in a tripartite system
Connecting the dots between material properties and qubit performance
Scientists studying superconducting qubits identified structural and chemical defects that may be causing quantum information loss — an obstacle to practical quantum computation. Read More Quantum Computers News — ScienceDaily
Wilson loop and Wilczek-Zee phase from a non-Abelian gauge field
npj Quantum Information, Published online: 30 September 2021; doi:10.1038/s41534-021-00483-2 Wilson loop and Wilczek-Zee phase from a non-Abelian gauge field
Temporal analog of Fabry-Pérot resonator via coherent population trapping
npj Quantum Information, Published online: 30 September 2021; doi:10.1038/s41534-021-00479-y Temporal analog of Fabry-Pérot resonator via coherent population trapping
Correlated electrons ‘tango’ in a perovskite oxide at the extreme quantum limit
Scientists have found a rare quantum material in which electrons move in coordinated ways, essentially ‘dancing.’ Straining the material creates an electronic band structure that sets the stage for exotic, more tightly correlated behavior — […]
SURF and QuTech collaborate on quantum technology
The post SURF and QuTech collaborate on quantum technology appeared first on QuTech.
Photonic chip is key to ‘nurturing’ quantum computers
Quantum computers are gaining pace. They promise to provide exponentially more computing power for certain very tricky problems. They do this by exploiting the peculiar behaviour of quantum particles, such as photons of light. A […]
Will twisted superconducting flakes make better components for quantum computers?
Researchers have found a way to make ‘single-crystal flake’ devices that are so thin and free of defects, they have the potential to outperform components used today in quantum computer circuits. Read More Quantum Computers […]
Entanglement across separate silicon dies in a modular superconducting qubit device
npj Quantum Information, Published online: 28 September 2021; doi:10.1038/s41534-021-00484-1 Entanglement across separate silicon dies in a modular superconducting qubit device
Simulating quantum computations with Tutte polynomials
npj Quantum Information, Published online: 24 September 2021; doi:10.1038/s41534-021-00477-0 Simulating quantum computations with Tutte polynomials
Switching on a superfluid
We can learn a lot by studying microscopic and macroscopic changes in a material as it crosses from one phase to another, for example from ice to water to steam. A new study examines systems […]
Quantum efficiency, purity and stability of a tunable, narrowband microwave single-photon source
npj Quantum Information, Published online: 23 September 2021; doi:10.1038/s41534-021-00480-5 Quantum efficiency, purity and stability of a tunable, narrowband microwave single-photon source
Quantum cryptography Records with Higher-Dimensional Photons
A new and much faster quantum cryptography protocol has been developed: Usually, quantum cryptography is done with photons that can be in two different states. Using eight different states, cryptographic keys can be generated much […]
Battery camera developed using quantum technology launches in key milestone for transport electrification
A commercial battery imaging system born out of collaborative work with QT Hub researchers at the University of Sussex and CDO2 will be unveiled today at low carbon vehicle technology event, Cenex-LC
Taking lessons from a sea slug, study points to better hardware for artificial intelligence
The sea slug has taught neuroscientists the most basic intelligence features that any creature in the animal kingdom needs to survive. Now, researchers have mimicked these strategies in a quantum material, a step toward figuring […]
Just by changing its shape, scientists show they can alter material properties
Scientists have observed that when the shape of a thin film of metal oxide known as titania is confined at the mesoscale, its conductivity increases. This finding demonstrates that nanoscale confinement is a way to […]