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SAN FRANCISCO (AP) — A U.S. judge in San Francisco has refused to immediately allow the Trump administration to enforce a ban on asylum for any immigrants who illegally cross the U.S.-Mexico border.Judge Jon Tigar on Friday rejected the Justice Department's request to suspend his earlier order temporarily blocking the ban. Tigar said the administration had still not shown that the ban was legal.At issue is President Donald Trump's Nov. 9 proclamation that barred anyone who crossed the U.S.-Mexico border between official ports of entry from seeking asylum. Trump issued the proclamation in response to caravans of migrants approaching the border.Tigar on Nov. 19 sided with legal groups who argued that federal law is clear that immigrants in the U.S. can request asylum regardless of whether they entered legally. 827

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 small wildfire broke out Sunday morning near Vallejo (vuh-LAY'-ho) with flames coming dangerously close to homes and forcing a college to evacuate at the northeast end of San Francisco Bay.A live broadcast on KGO-TV shows the fire on both sides of Interstate 80 and homeowners using hoses on a hillside to try and fight it.The fire forced the freeway to close and the California State University Maritime Academy to issue an evacuation order.The wildfire halted traffic at the Carquinez Bridge toll booth as the freeway became shrouded in thick smoke.Vallejo is 55 miles (88.5 kilometers) south of Geyserville where a massive wildfire forced 180,000 people to flee their communities. 714

SAN DIEGO, California — An 18-year-old San Diego woman died and her 16-year-old cousin were injured in a crash on Interstate 10 on the way to the Coachella Music Festival in Indio, a friend told KGTV television station in San Diego.Federico Pedrazzini confirmed Ginevra Gallone-Latte died in the crash in Banning early Thursday morning. Her cousin Manuela was injured.The California Highway Patrol said 21-year-old Cesar Hernandezozuna was speeding when his BMW drifted onto the dirt shoulder. The driver tried to get back onto the freeway but went over an embankment and hit two trees, officers said.The crash split the car in two. Gallone-Latte was thrown and died at the scene, according to the CHP.Her cousin was taken to the hospital with serious injuries. Hernandezozuna suffered a facial injury, according to the CHP.Both teens had previously attended La Jolla High School.Officers ruled out alcohol and drugs as contributing factors in the crash but had not determined the cause, the CHP said. 1019

SAN DIEGO, Calif. (KGTV) - As the City of San Diego seeks more funding for three temporary bridge shelters, data reveals they have fallen far short of their goal to transition people into permanent housing.When the tents opened, the office of Mayor Kevin Faulconer set a goal of bridging 65 percent into permanent housing.A report by the San Diego Housing Commission shows from December 2017 to March 2018, 946 people have exited the three tents.RELATED COVERAGE: 476