Turning Classic Computing Information Into Quantum States of Photons. Research conducted at Kazan Federal University is producing mathematical models useful to full-scale quantum computing. The
European Space Agency Sees Laser Communication as Next Revolution. With the use of satellites projected to double and spending to increase over $2B from 2020
Protecting Entanglement of Photons with Symmetry. Research conducted at the Karlsruhe Institute of Technology further proves quantum entanglement (quantum states) may be preserved when
Research team from the Technical University of Denmark achieves multi-fold increase in quantum encryption key bitrates.
Silicon Photonic Chips: Solving Two Challenges for Quantum Computing. Silicon computer chips are the foundation for nearly all computing devices today. From your desktop, to
A team affiliated with the University of Bristol has devised a tiny (1 mm square) random number generator which generates numbers at 2.8 Gbps speeds using silicon photonics technology found in semiconductor fabrication methods. This rate of photon generation and its inherent randomness coupled with a “very low” power consumption give this QRNG potential to secure encryption at the mobile-device level.
Renowned researcher, Pan Jianwei, lead a team of physicists from the University of Science and Technology of China with others from Alibaba’s Quantum Computing Laboratory. The research demonstrated entanglement of 6 photons, creating 18 qubits. The entanglements exploited three degrees of freedom encompassing their polarization, orbital angular momentum, and path. This nearly doubles the previous record of 10 entangled qubits.
A team of scientists from France, Germany, and the U.S., are working to develop techniques and materials to produce “indistinguishable photons”. Doing so would permit greater integration into the current high-speed, light-based, computing infrastructure found throughout the globe. This is a necessity to expanding quantum computing, in a practical sense. Other facets to the research include increasing the quantum workforce: “Ultimately, we hope to draw more researchers into this field” the team commented.
Physicists at the Swiss Federal Institute of Technology in Zurich, Switzerland, have successfully transferred two qubits via coaxial cable. Using a microwave photon resonator to transmit the qubit state, the quantum state was successfully transmitted to a second qubit through the cable; a distance of about 2 meters. With a transmission success rate of 80 percent, the process was repeatable upwards of 50,000 times per second. The team’s next goal is to enable entanglement swapping – using qubits to transmit and receive. If successful, the technique could open up avenues for larger quantum computers.
What is superposition and how does it really work?
