Abstract: We report an all-fiber-based experimental setup to generate a correlated photon-pair comb using Four Wave Mixing (FWM) in Highly non-linear fiber (HNLF). Temporal correlations of the ...

The National Hurricane Center on Saturday continued tracking an Atlantic system moving toward the Caribbean but no longer expects it to form into the season’s next tropical depression or storm. As of ...

(InvestigateTV) — Every week in America, more than 10,000 people are released from state and federal prisons, stepping back into a society that is often unwelcoming. For those with a criminal record, ...

JOHANNESBURG (miningweekly.com) – South Africa has delivered what is described as “an exceptionally pure rare earth product”, which has been optimised in a Johannesburg laboratory. The breakthrough is ...

As Clark County sizzles under the summer heat, a quiet yet pesky threat is multiplying at parks, golf courses, fountains, and maybe even your own backyard: Mosquitoes have adapted and, in some areas, ...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Between cracking down on abortion pills and restricting transgender ...

It’s early on a January morning in 1979, I’m 10 years old, and the adventure is about to begin. My alarm jolts me awake. Snow is falling outside, and my mother tells me that school is canceled. We ...

For fans of the newest young saints, Milan and Turin offer a chance to follow in their footsteps, discovering where they studied, prayed and served. Clockwise from upper left: Pier Giorgio Frassati’s ...

Washington — What was happening in the criminal case of Nathalie Rose Jones, who was facing charges in Washington, D.C., federal court this summer, wasn't typical. A grand jury of D.C. citizens on ...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Two California-based companies accuse the state of government overreach ...

Meta’s ambitious A.I. unit is struggling to keep talent despite aggressive hiring. Photo by Matt McClain/The Washington Post via Getty Images Through a recruiting frenzy that has included $100 million ...