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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 FRANCISCO (AP) — California’s coronavirus cases are surging and health officials say social gatherings and people not wearing masks or keeping their distance are fueling the rise. Yet it’s businesses that are paying the price in the form of revenue-sapping restrictions. Business owners say that’s not fair and some medical experts say they have a point. Dr. Peter Chin-Hong, a professor who specializes in infectious diseases at the University of California, San Francisco, said restrictions targeting entire classes of businesses aren't very fine-tuned and don't address specific activities that are driving the increase. 635

SAN DIEGO, Calif. (KGTV) -- One lucky couple will spend the rest of their lives together after crossing the finish line at America's Finest City half marathon together. The couple got engaged at the finish line in Balboa Park.The half marathon kicked off at the Cabrillo National Monument. Participants ran through Point Loma, past the San Diego Bay, the Embarcadero and ended in Balboa Park.The half-marathon is part of a series of racing called the Triple Crown, which means if runners participated in the La Jolla and Carlsbad marathons, they received a special medal today. Proceeds from the race go to several local charities.  660

SAN FRANCISCO (AP) — Major changes to the way people vote has election advocates on edge as Californians cast ballots in the Democratic presidential contest and other primary races. The “Super Tuesday” primary in the country's most populous state comes amid changes aimed at expanding voter participation, including new voting equipment and vote centers that are replacing polling places in some counties. Those changes may confuse some people. There are fears California might end up with a mess much worse than Iowa, where the Democratic Party couldn't declare a winner for several days. Advocates say voters are hanging onto their ballots, which will likely mean long lines Tuesday. 694

SAN DIEGO (KGTV)- Hospitalizations related to COVID-19 continue to increase across San Diego County.The county’s latest numbers show 458 patients hospitalized, while 178 are in the Intensive Care Unit.“It is not quite what we’re seeing in Florida and Houston, but we are seeing an increase for sure,” said Dr. Julie Phillips, the medical director of Sharp Grossmont’s Emergency Department.“Almost every ER in the county has their tents set up, and they never took them down despite us not needing to utilize it for a number of weeks, if not even about six weeks, then starting last week it is back in use,” said Phillips.Currently, Sharp Grossmont has 27 hospitalized COVID-19 patients, while Sharp Chula Vista has 44, and Sharp Memorial has 29.Phillips said most local hospitals are well equipped to handle the surge.“All of us have staffed up beds by 150 percent awaiting for this,” she explained. “We know a lot more; we feel better about knowing how it’s transmitted, we feel better about our PPE, especially our N95 masks. Flattening the curve gave us time to get what we needed ready to go, so now we’re ready.”On Friday, Scripps Health reached a single-day all-time high number of hospitalized COVID-19 patients.At its five locations, a total of 126 people were hospitalized. Earlier that week, the number was still in the 90s.Both Scripps Mercy in San Diego and Chula Vista had 38 patients hospitalized at each facility.The numbers were the highest for a single day since the pandemic began.Infectious disease specialist for UCSD Health, Dr. David Pride, tells 10News UCSD’s hospital system is also seeing an increase.“Going back to early June, we admit between 1 and 6 new patients per day. The rolling average is a bit higher the last couple of weeks,” said Pride via email. “We are operating near our capacity, but largely because we accept outside hospital transfers readily who need a higher level of care than their hospitals can provide. We still maintain surge capabilities, so we could admit many more patients should the situation get more dire.”A spokesperson for Palomar Health said they had seen an increase in patients in the last couple of weeks, but still have plenty of capacity.Kaiser Permanente has also seen a recent rise in COVID-19 related hospitalizations.The following statement was sent to 10News.“Consistent with other San Diego County hospitals, Kaiser Permanente has seen a recent rise in COVID-19-related hospitalizations. Most notably, we are seeing an increase in a younger, less acute population. We remain confident in our ability to provide care to all our members and are grateful to the San Diego community for continuing to practice social distancing and wearing a facial covering when outside of their homes.”As the Fourth of July gets closer, Phillips wants to remind people it is crucial not to let your guard down, and to continue taking safety precautions is they do choose to gather with friends or extended family.“I understand people are tired of it, but we’re not over it,” she said. “You have to take precautions, you must wear a face mask, you need to social distance, and you need to wash your hands.” 3166