Quantum Information & Computing Meeting: Quantum Fisher information
Benjamin Schiffer (MPQ):In this informal talk, I will introduce the main concepts of quantum Fisher information.
Breakthrough proof clears path for quantum AI
Convolutional neural networks running on quantum computers have generated significant buzz for their potential to analyze quantum data better than classical computers can. Read More Quantum Computers News — ScienceDaily
Cutting through the noise: AI enables high-fidelity quantum computing
SANKEN researchers achieved over 95% accuracy when reading the output spin states of qubits by implementing machine learning. By using deep neural networks, the team was able to overcome noise in both simulated and real […]
Using quantum Parrondo’s random walks for encryption
SUTD has set out to apply concepts from quantum Parrondo’s paradox in search of a working protocol for semiclassical encryption. Read More Quantum Computers News — ScienceDaily
Self-testing quantum systems of arbitrary local dimension with minimal number of measurements
npj Quantum Information, Published online: 14 October 2021; doi:10.1038/s41534-021-00490-3 Self-testing quantum systems of arbitrary local dimension with minimal number of measurements
New nanostructure could be the key to quantum electronics
A novel electronic component could be an important key to the era of quantum information technology: Using a tailored manufacturing process, pure germanium is bonded with aluminum in a way that atomically sharp interfaces are […]
Ultrafast and coupled: Atomic vibrations in the quantum material boron nitride
Materials consisting of a few atomic layers display properties determined by quantum physics. In a stack of such layers, vibrations of the atoms can be triggered by infrared light. New experimental and theoretical work shows […]
Quantum Information & Computing Meeting: Minimizing the action principle in toy examples of causal fermion systems
Robert Jonsson (MPQ)Having been invited to give this talk at short notice, I am taking the liberty to present a topic a little bit off from the most beaten paths to you.
Non-Markovian memory strength bounds quantum process recoverability
npj Quantum Information, Published online: 12 October 2021; doi:10.1038/s41534-021-00481-4 Non-Markovian memory strength bounds quantum process recoverability
Full monitoring of ensemble trajectories with 10 dB-sub-Heisenberg imprecision
npj Quantum Information, Published online: 11 October 2021; doi:10.1038/s41534-021-00486-z Full monitoring of ensemble trajectories with 10 dB-sub-Heisenberg imprecision
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.