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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) — A California police officer who was killed in the line of duty was hailed Saturday as a "Fiji-born American hero" who made the ultimate sacrifice for his adopted country.At a funeral held for Cpl. Ronil Singh, mourners remembered the 33-year-old officer as a hard-working immigrant who worked his way up to become an officer in the small town of Newman.He "stood so much for what is right in our world and yet unfortunately was taken too soon from us by what is wrong in our world," Modesto police Officer Jeff Harmon said at the service in a Modesto church.RELATED: Suspect wanted in Newman cop killing arrested near BakersfieldHe "probably more than anything else wanted to be home on Christmas night with his wife and his young son, but instead made a selfless choice to serve all of his community knowing that there are many more than just his own family that needed his protection that night."Singh was shot to death in the early hours of Dec. 26 after he pulled over a suspected drunk driver. The gunman fled, and a two-day-long manhunt led to the arrest of a man who authorities said was in the country illegally and was preparing to flee to Mexico.Gustavo Arriaga Perez, also 33, has since been charged with murder.RELATED: 'We're a family': Newman Police mourn loss of a fellow officerThe case has rekindled a debate over California's sanctuary law that limits cooperation by local authorities with federal immigration authorities. President Donald Trump has cited Singh's killing to call for tougher border security amid a fight with congressional Democrats over funding for a border wall. The impasse has forced a partial government shutdown that entered a 15th day Saturday.At his funeral, however, Singh's brother and colleagues focused on his achievements and playful personality.Singh grew up in a Fijian farming town and emigrated to central California in 2003. He joined the 12-member Newman police department in 2011 after attending police academy and serving as a volunteer, animal control officer and code enforcement officer at other agencies in the region.RELATED: Sheriff: California officer's killer is in the US illegally"He told me he came to this country with one purpose, and that purpose was to become a police officer," Newman Police Chief Randy Richardson said. "He told me about all the pride he had in America, and how much it meant to get this opportunity."Singh served as a K-9 officer before being promoted to a corporal at the Newman police department. He earned a bachelor degree in administration of justice two years ago with the goal of becoming a sergeant, said his friend, Modesto police Detective Ra Pouv."Ronil and I are both immigrants to a country we truly love, and we both view serving our country and community through law enforcement as important to who we are," said Pouv, who is from Cambodia. "It is our way of giving back to a country that embraced us and our family."RELATED: Police killing suspect was fleeing to Mexico, sheriff saysThe Fijian ambassador to the United States, Naivakarurubalavu Solo Mara, said Singh made his mark in his adopted country and called him a "Fiji-born American hero."Singh's widow was at the funeral but did not address mourners; his 5-month-old son can be heard cooing during the service. A slideshow shown during the service featured photos of the smiling officer posing for Christmas photos with his family, working with his colleagues and cuddling Sam, his black Labrador K-9 dog.On Friday, his casket was draped in an American flag and driven about 25 miles in a procession from Modesto into a theater in the small town of Newman for a viewing. People lined up along the streets to honor the fallen officer.After Saturday's funeral, Singh's body was taken on a procession to its final resting place at Lakewood Memorial Park in the nearby town of Hughson. 3876

San Diego is weighing major new rules that would ban people from living in their cars near schools and homes.The proposal would block anyone from living in their cars within 500 feet of a school or residence, and also prohibit them from living in their cars on most other city streets between 6 p.m. and 6 a.m.San Diegans living in their cars have had free reign since a judge ruled in August that its current laws were too vague. That's led to concerns from some residents in beach areas, who say they have seen people drinking in cars, as well as urinating and defecating on neighborhood streets. "I used to feel very safe walking around throughout La Jolla, Pacific Beach and everything, and there's a lot of times I don't feel as safe as I used to," said Sarah Bonesteel, a Crown Point resident. The issue of in-car living has grown along with San Diego's high housing costs. The car is one of the last pieces of shelter a homeless person may possess, Mayor Kevin Faulconer noted Tuesday. At a news conference, the mayor announced that the city would open an additional parking lot for people to legally sleep in their cars. It will be in the overflow lot across from SDCCU Stadium, providing access to housing and other services."The goal for every person or family staying here will be to access resources to get back into long-term housing," Faulconer said. Meanwhile, the city's Public Safety and Livable Neighborhoods Committee will consider the citywide restrictions Wednesday. Ann Menasche, a senior attorney with Disability Rights California, called the proposed rules draconian and said the fault is with the city. "They created the crisis by the policies of the city, and now they want to blame the victims of the crisis for the crisis itself," she said. "This is going nowhere."The new parking lot for sleeping overnight should open in about 45 days. 1874

SAN DIEGO (KGTV)-- With the increase in park usage since the start of the COVID-19 pandemic, San Diego Park Rangers are noticing a slight increase in vandalism at city parks and trails.On a scale of one to ten, hiking up Cowles Mountain was a bit of a challenge."For me, an eight," six-year-old Joaquin Santaruse said.He, his brother, and two buddies zig-zagged up San Diego's highest peak Wednesday to get away."It's fun to be in nature sometimes," older brother Mateo Santaruse said. "It's a great view up there, and there's a bunch of cool rocks, and in fact, we found a pink one."Many people have noticed and posted about an uptick in graffiti at parks and trails across the nation. Zion National Park published a post on their Facebook page, showcasing the recent vandalism incidents. In it, they are pleaded with people not to disrupt nature during their visit."We just saw that it was painted all pink, and we were like, 'Wow, look at that rock!'" Mateo said.But that awe turned into a little disappointment for the young boys."The chemicals in the spray paint," friend Aaron Heredia said."The animals can try to lick on it and stuff, and then it's toxic," Mateo followed.Tim Graham with the city of San Diego, says graffiti has both environmental and financial impacts. He sent ABC 10News a statement reading,"Because of the location and size of some of the rocks, park rangers are unable to remove the rocks or the paint safely. The City is looking into contracting with a qualified vendor that can safely remove and capture the paint from the rocks."This, unfortunately, becomes an unnecessary expense for taxpayers. So instead of leaving a mark, Graham is asking San Diegans only to leave footprints.If you spot graffiti, email the city at askparks@sandiego.gov or file a report at the city's Parks and Recreation website. 1841

SAN FRANCISCO (AP) — A calm overnight allowed firefighters to make progress against a trio of massive fires burning in Northern California. But they are girding for the arrival of a weather system Sunday that will bring high winds and thunderstorms that could spark new fires and fan existing blazes that already destroyed nearly 1,000 homes and other structures and forced tens of thousands to evacuate. On Sunday, President Donald Trump said he approved a major disaster declaration for California on Saturday after speaking to California Governor Gavin Newsom."We're working very closely with the governor and very closely with a lot of great state representatives and local representatives. And we'll take care of the situation," Trump said on Sunday. Trump added that the federal government had already deployed over 26,001 first responders, and personnel to battle the wildfires.The fires surrounding the San Francisco Bay Area were started by lightning strikes that were among 12,000 registered in the state in the past week. The National Weather Service issued a “red flag” warning for the area through Monday afternoon, meaning extreme fire conditions exist. 1175