https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Quantum computers, systems that process information leveraging quantum mechanical effects, could soon outperform classical computers on some complex computational problems. These computers rely on qubits, units of quantum information that share states with each other via a quantum mechanical effect known as entanglement. https://phys.org/news/2026-01-fault-tolerant-quantum-protocol-efficiently.html Quantum Physics Mon, 05 Jan 2026 10:08:50 EST news686830014 Quantum computers, machines that process information leveraging quantum mechanical effects, could outperform classical computers on some optimization tasks and computations. Despite their potential, quantum computers are known to be prone to errors and their ability to perform computations is easily influenced by noise. https://phys.org/news/2025-11-chip-cryptographic-protocol-quantum-results.html Quantum Physics Tue, 11 Nov 2025 07:10:01 EST news681732364 Quantum advantage is the milestone the field of quantum computing is fervently working toward, where a quantum computer can solve problems that are beyond the reach of the most powerful non-quantum, or classical, computers. https://phys.org/news/2023-11-scientist-approaching-milestone-quantum.html Quantum Physics Mon, 20 Nov 2023 12:48:54 EST news619706930 With last year's undersea volcano injecting massive amounts of water high into the atmosphere, scientists were bracing for a big Antarctica ozone hole this fall. But it didn't happen. https://phys.org/news/2023-11-ozone-hole-average-size-undersea.html Earth Sciences Wed, 01 Nov 2023 15:27:12 EDT news618071226 Quantum computers, devices that perform computations by exploiting quantum mechanical phenomena, have the potential to outperform classical computers on some tasks and optimization problems. In recent years, research teams at both academic institutions and IT companies have been trying to realize this predicted better performance for specific problems, which is broadly known as "quantum advantage." https://phys.org/news/2023-08-protocol-reliably-quantum-advantage.html Quantum Physics Wed, 30 Aug 2023 05:50:01 EDT news612517711 Thirteen, 53 and 433. That's the size of quantum computers in terms of quantum bits, or qubits, which has significantly grown in the last years due to important public and private investments and initiatives. Obviously, it is not only a mere question of quantity: the quality of the prepared qubits is as important as their number for a quantum computer to beat our existing classical computers, that is, to attain what's called the "quantum advantage". Yet it is conceivable that soon quantum-computing devices delivering such an advantage will be available. How would this affect our daily lives? https://phys.org/news/2023-01-quantum-threaten-cybersecurity-infrastructure-scientists.html Quantum Physics Thu, 12 Jan 2023 13:00:06 EST news592750801 Even though quantum computers are a young technology and aren't yet ready for routine practical use, researchers have already been investigating the theoretical constraints that will bound quantum technologies. One of the things researchers have discovered is that there are limits to how quickly quantum information can race across any quantum device. https://phys.org/news/2021-08-approach-quantum-limit.html Quantum Physics Thu, 05 Aug 2021 07:19:01 EDT news547366737 Even quantum computers make mistakes. Their computing ability is extraordinary, exceeding that of classical computers by far. This is because circuits in quantum computers are based on qubits that can represent not only zeroes or ones, but also superpositions of both states by using the principles of quantum mechanics. Despite their great potential, qubits are extremely fragile and prone to errors due to the interactions with the external environment. https://phys.org/news/2020-09-technique-errors-quantum.html Quantum Physics Wed, 09 Sep 2020 11:00:03 EDT news518860763 How can we protect communications against eavesdropping if we don't trust the devices used in the process? This is one of the main questions in quantum cryptography research. Researchers at the University of Basel and ETH Zurich have succeeded in laying the theoretical groundwork for a communication protocol that guarantees 100% privacy. https://phys.org/news/2020-06-adding-noise.html Quantum Physics Fri, 12 Jun 2020 08:06:13 EDT news511167969 A new measurement protocol, developed at TU Wien (Vienna), makes it possible to measure the quantum phase of electrons—an important step for attosecond physics. https://phys.org/news/2019-10-metronome-quantum-particles.html Quantum Physics Tue, 01 Oct 2019 09:57:03 EDT news489142613 A study led by physicists at Swansea University in Wales, carried out by an international team of researchers and published in the journal Physical Review X shows that ion-trap technologies available today are suitable for building large-scale quantum computers. The scientists introduce trapped-ion quantum error correction protocols that detect and correct processing errors. https://phys.org/news/2017-12-error-free-quantum-age.html Quantum Physics Fri, 15 Dec 2017 12:22:06 EST news432562914 In 2015, two researchers remotely hacked a Jeep Cherokee being driven by a reporter who documented how the researchers controlled everything from the car's radio and media console to its brakes and steering. https://phys.org/news/2016-08-cybersecurity-student-cars-safe-hacking.html Security Mon, 22 Aug 2016 07:15:46 EDT news391068935 (Phys.org)—Inspired by natural selection and the concept of "survival of the fittest," genetic algorithms are flexible optimization techniques that can find the best solution to a problem by repeatedly selecting for and breeding ever "fitter" generations of solutions. https://phys.org/news/2016-06-genetic-algorithms-quantum-simulations.html Quantum Physics Thu, 23 Jun 2016 03:50:08 EDT news385872580 Australian scientists have designed a 3D silicon chip architecture based on single atom quantum bits, which is compatible with atomic-scale fabrication techniques - providing a blueprint to build a large-scale quantum computer. https://phys.org/news/2015-10-scientists-full-scale-architecture-quantum-silicon.html Quantum Physics Fri, 30 Oct 2015 14:00:02 EDT news365401207 The next breakthrough in computing that will make our computer networks more reliable, faster and more secure against cyber attacks is being developed at Rochester Institute of Technology. https://phys.org/news/2015-08-rit-problem-looping-meshed-tree.html Computer Sciences Fri, 14 Aug 2015 13:43:39 EDT news358778598 New research to be presented at the 18th European Symposium on Research in Computer Security (ESORICS 2013) this week could result in a sea change in how to secure computations. https://phys.org/news/2013-09-breakthrough-cryptography-result.html Computer Sciences Mon, 09 Sep 2013 11:24:11 EDT news297944639 TCP, the transmission control protocol, is one of the core protocols governing the Internet: If counted as a computer program, it's the most widely used program in the world. https://phys.org/news/2013-07-automatically-tcp-congestion-control-algorithms.html Computer Sciences Thu, 18 Jul 2013 14:30:01 EDT news293375378 South Korean investigators on Tuesday blamed rival North Korea for a cyberattack last month on dozens of South Korean media and government websites, including those of the president and prime minister. https://phys.org/news/2013-07-south-korea-blames-north-cyberattack.html Internet Tue, 16 Jul 2013 02:56:22 EDT news293162170 (Phys.org) —Imagine driving down a road a few times and obtaining in an hour more data about the surrounding landscape than a crew of surveyors could obtain in months. https://phys.org/news/2013-03-mobile-lidar-technology-rapidly.html Engineering Fri, 15 Mar 2013 14:54:57 EDT news282578088 A tax-dodging spat involving the Swiss bank UBS and Germany took a fresh twist after a Swiss daily reported on Tuesday that German authorities were using simple photos taken by a UBS worker of their computer screen. https://phys.org/news/2012-12-ubs-banking-worker-screen.html Other Tue, 04 Dec 2012 17:37:28 EST news273865033 (Phys.org)—On the surface, ants and the Internet don't seem to have much in common. But two Stanford researchers have discovered that a species of harvester ants determine how many foragers to send out of the nest in much the same way that Internet protocols discover how much bandwidth is available for the transfer of data. The researchers are calling it the "anternet." https://phys.org/news/2012-08-anternet.html Plants & Animals Mon, 27 Aug 2012 09:13:01 EDT news265277569 A new way to send large files around the Web completely free of charge has been launched by the University of Southampton. https://phys.org/news/2011-05-scientist-free-large-web.html Computer Sciences Wed, 18 May 2011 10:11:44 EDT news224932284 The US Justice Department wants Internet service providers and cell phone companies to be required to hold on to records for longer to help with criminal prosecutions. https://phys.org/news/2011-01-justice-department-internet-cell-held.html Internet Tue, 25 Jan 2011 16:30:01 EST news215193310 (PhysOrg.com) -- Today's Internet protocol, IPv4, is expected to run out of space this year. On World IPv6 Day the first steps will be taken to test a long-term solution that will address the 30 year old 32 bit addresses. https://phys.org/news/2011-01-ipv6-internet-protocol-billion-space.html Internet Thu, 20 Jan 2011 12:33:01 EST news214749157 The Air Force Office of Scientific Research's Young Investigator Research Program is enabling new scientists and engineers with exceptional ability to do creative basic research, enhance their career development and develop tools and techniques. https://phys.org/news/2010-10-yip-algorithms.html Computer Sciences Fri, 22 Oct 2010 18:14:19 EDT news206990033 (AP) -- Hundreds of computers that caused a wave of outages on U.S. and South Korean government websites last July launched new attacks on the same sites, but no major damage was reported, police said Thursday. https://phys.org/news/2010-07-skorea-cyberattacks.html Internet Thu, 08 Jul 2010 04:09:14 EDT news197780925 Your monthly cell phone bill is way too expensive. No, it's not the fees or taxes or even text messages that are leaching your wallet. It's your voice plan. https://phys.org/news/2010-03-smart-users-ditch-pricey-voice.html Telecom Wed, 17 Mar 2010 18:36:48 EDT news188069747 (PhysOrg.com) -- Following news reports that 65,000 modems and wireless routers used by Time Warner Cable customers are vulnerable to attack by hackers, a Columbia University expert on computer security and privacy has found that software flaws in embedded devices like routers, webcams and Voice over Internet Protocol (VoIP) phone adapters are far more widespread than previously known. https://phys.org/news/2009-10-thousands-consumer-internet-devices-vulnerable.html Computer Sciences Mon, 26 Oct 2009 15:50:01 EDT news175788913 University of California, San Diego computer scientists have created software that they hope will lead to data centers that logically function as single, plug-and-play networks that will scale to the massive scale of modern data center networks. The software system -- PortLand -- is a fault-tolerant, layer 2 data center network fabric capable of scaling to 100,000 nodes and beyond. https://phys.org/news/2009-08-scientists-scale-layer-center-networks.html Computer Sciences Mon, 17 Aug 2009 18:38:47 EDT news169753059 (PhysOrg.com) -- Dartmouth researchers who were pioneers in Public Key Infrastructure (PKI) - a system that secures and authenticates computer communications - are now playing leading roles establishing Internet standards and guidelines for security. https://phys.org/news/2009-07-standards-internet.html Internet Tue, 07 Jul 2009 13:34:14 EDT news166192419