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SAN FRANCISCO (AP) — Google announced Wednesday it has achieved a breakthrough in quantum computing, saying it has developed an experimental processor that took just minutes to complete a calculation that would take the world's best supercomputer thousands of years.The feat could open the door someday to machines so blazingly fast that they could revolutionize such tasks as finding new medicines, developing vastly smarter artificial intelligence systems and, most ominously, cracking the encryption that protects some of the world's most closely guarded secrets.Such practical uses are still probably decades away, scientists said. But the latest findings, published in the scientific journal Nature, show that "quantum speedup is achievable in a real-world system and is not precluded by any hidden physical laws," the researchers wrote.RELATED: Google Maps will now allow drivers to report hazards, slowdowns and speed trapsBig tech companies including Microsoft, IBM and Intel are avidly pursuing quantum computing, a new and somewhat bewildering technology for vastly sped-up information processing.While conventional computing relies on bits, or pieces of data that bear either a one or zero, quantum computing employs quantum bits, or qubits, that contain values of one and zero simultaneously.But quantum computing requires placing the fragile and volatile qubits in colder-than-outer-space-refrigerators to control them.Google's quantum processor looks like an upside-down garbage can, out of which comes a series of tubes used to conduct signals to a chip. The whole thing is stored in a cool chamber to protect the chip.RELATED: Google unveils new Pixel 4 smartphone, Pixel BudsGoogle said that its quantum processor, called Sycamore, finished a calculation in 3 minutes, 20 seconds — and that it would take the world's fastest supercomputer 10,000 years to do the same thing.The calculation was a random sampling problem, similar to looking at the various combinations that could come from dice or a gambling machine. It has little practical value, other than to test how well the processor works."The more interesting milestone will be a useful application," said Chris Monroe, a University of Maryland physicist who is also the founder of quantum startup IonQ.Google's findings, however, faced pushback from other industry researchers. A version of Google's paper leaked online last month.IBM took issue with Google's claim that it had achieved "quantum supremacy," or the point when a quantum computer can perform a calculation that a traditional computer can't complete within its lifetime.IBM researchers said that its IBM-developed supercomputer, called Summit, could actually do the calculation in 2.5 days.Google disputed IBM's claims.Whether or not Google achieved "quantum supremacy," the research suggests the field is maturing."The quantum supremacy milestone allegedly achieved by Google is a pivotal step in the quest for practical quantum computers," John Preskill, the Caltech professor who coined the term "quantum supremacy," wrote in a column after the paper was leaked.It means quantum computing research can enter a new stage, he wrote, though a significant effect on society "may still be decades away."One feared outcome — though experts said it is a long way off — is a computer powerful enough to break today's best cryptography.Quantum computers might also one day lead to the development of better artificial intelligence systems to guide financial portfolios, crop yields or transportation routes.The promise of such applications has attracted interest from the U.S., China and other governments. President Donald Trump last year signed a measure to spend more than .2 billion over five years for quantum research across the federal government. 3797

SAN DIEGO (KGTV)- Visitors and locals are expected to flock to San Diego beaches this Fourth of July weekend.While some beaches will close in California for the holiday weekend, San Diego County officials will keep local beaches open.San Diego County Supervisor Nathan Fletcher said no COVID-19 community outbreaks had been linked to beaches, and without the data, it would not make sense to close them off.According to Dr. Wilma Wooten, the county’s public health officer, leaders of San Diego’s coastal communities said they believe they can manage the enforcement of social distancing and facial coverings this weekend.Longtime Solana Beach residents Richard and Lori Brenckman are frustrated by the idea of crowds flocking to the beaches during a pandemic.“The general public has shown that it’s not trustworthy to social distance,” said Lori Brenckman. “They want to gather, and most people have proven that they won’t follow the rules.”Beachgoers are required to maintain social distancing and wear a facial covering when they come within six feet of someone not from the same household. Mixing with other groups is prohibited.Lifeguards across the county are preparing for the busy weekend.“It is the big holiday of the summer, so we expect giant crowds,” said Lifeguard Lt. Rick Romero with San Diego Fire-Rescue. “This a tourist destination; everyone wants to come to San Diego. It’s a great place to hang out.”Romero said extra lifeguards would be in place both Friday and Saturday. “We’re just asking people for some compliance, have some common sense, be nice to each other,” he said.Elevated surf and the possibility of dangerous rip currents are expected over the weekend.California Gov. Gavin Newsom also ordered parking facilities at all state beaches in Southern California, and the Bay area to close this weekend. 1839

San Diego (KGTV)- As teachers come up with their virtual lesson plans for the upcoming school year, one local music teacher is turning to the community. Students at Grossmont High School need guitars for class."We'll have 80 students plus taking guitar this year," says teacher Jeremy Cooke. "It is vital for them to be able to play a guitar at home."The high school is not able to provide an instrument for each student."We're a Title I school. So over half of our students get free or reduced lunch, and many can't afford their own guitar."Cooke made a post on Facebook asking for the community to donate any used or new guitars. He says the response has been amazing. As of Monday afternoon, Cooke has received over 30 guitars. Many others are pledging to donate."I've been driving around the county picking up guitars, meeting the people who are donating, and its really neat to see, especially during these tough times."As part of his distance learning plan, Cook has compiled multiple videos recorded over the years to help students learn to play the guitar.Once the class is finished, the students will return the donated guitars to the school for others to use the following year.Grossmont High School is still in need of more guitars. Cooke says he is accepting used and new acoustic or electric guitars for the upcoming school year. If you would like to donate email Cooke at jcooke@guhsd.net or message him on Instagram @covidguitars 1452

SAN DIEGO (KGTV): The San Diego Sheriff's Department has a new tool to help keep deputies safe as they fight the war on drugs.The department just bought 15 TruNarc devices. The hand-held scanners can detect and identify drugs without the deputies having to come into physical contact.Previously, to determine what kind of drug was present at a crime scene, law enforcement would have to scoop a small amount into a kit for testing. The TruNarc uses laser technology to scan through plastic bags.This technology has become increasingly important with the rise of drugs like Fentanyl. Just a microscopic amount can cause an overdose, which has made first responders wary of handling it.The TruNarc can identify more than 200 different drugs and takes less than 2 minutes to complete the scan and give a presumptive result.San Diego Sheriff's Deputies used it earlier this month when they encountered an unconscious man in San Marcos. He was covered in white powder. Deputies called for the scanner and found the powder was Fentanyl. They called for a hazmat team to clean the scene. Officials with the department say the device likely saved the man's life, as he was able to get the medical help he needed. They say it also may have saved the officers, who didn't have to touch the man or the powder until after the scene had been made safe.The devices cost ,400 each. A grant from the Honorary Deputy Sheriff's Association helped pay for them. One has been given to each sub-station around the county. There is also one at every jail and another at the High-Intensity Drug Trafficking Area office. 1617

SAN DIEGO (KGTV): A new study from the San Diego Military Advisory Council says the military industry in the area is the top economic driver.The SDMAC's "Military Economic Impact Study" says the armed forces spent billion in San Diego in 2018. That includes compensation for military employees (43%), procurement and other spending like defense contracts (38%) and retirement and veterans' benefits (19%).Additionally, the ripple effect of all that money creates billion worth of San Diego's Gross Regional Product. That's 22% and accounts for more than tourism or tech industries.The military also helps support 340,000 jobs in the county. That's 22% of the jobs across San Diego. It includes members of the Navy, Marines, Coast Guard, Reserves and civilians employed by the DOD, DHS or VA. It's the largest concentration of military employees anywhere in the world.There are also over 241,000 retirees or military veterans in the area, according to the study.Meanwhile, the study says the military's impact should grow in the future. It anticipated 4% growth next year.It could be more in the coming few years. President Trump recently announced a pay raise for military enlistees. He also signed a 7 billion defense budget for 2019, the largest ever. The Navy plans to homeport 20 more ships and approximately 15,000 more sailors to San Diego by 2025. And the Army has listed San Diego as a possible location for it's new "Future Command" post researching emerging technology.But the military faces some challenges in the coming years as well. Housing is a big issue, especially if the Navy wants to expand in San Diego. There are also concerns about the high cost of living in the area. And SDMAC says they're looking for ways to help military spouses find jobs. One of the biggest roadblocks they see is that California doesn't recognize many out-of-state certificates for jobs like teachers, nurses and real estate agents.The full report comes out at 10:30 am on Thursday. 2007