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Optical Memory Optimization Across Rubidium Isotopes and Transitions

arXiv:2606.00199v1 Announce Type: cross Abstract: We investigate optical memory efficiency and storage time across $^{85}\mathrm{Rb}$ and $^{87}\mathrm{Rb}$ isotopes on both the D$_1$ and D$_2$ transitions. Maximum efficiency of up to $44\%$ was achieved using the D$_1$ line in both isotopes, with up to 1.5 ms storage time. %Maximum efficiencies of $44\%$ were measured for both isotopes on the D$_1$ line, in agreement within $1\sigma$, while the longest storage time reached is $1.5$ ms.

arXiv Physics 8d ago

Optical Memory Optimization Across Rubidium Isotopes and Transitions

Announce Type: replace-cross Abstract: We investigate optical memory efficiency and storage time across $^{85}\mathrm{Rb}$ and $^{87}\mathrm{Rb}$ isotopes on both the D$_1$ and D$_2$ transitions. Maximum efficiency of up to $44\%$ was achieved using the D$_1$ line in both isotopes, with up to 1.5 ms storage time. %Maximum efficiencies of $44\%$ were measured for both isotopes on the D$_1$ line, in agreement within $1\sigma$, while the longest storage time reached is $1.5$ ms.

arXiv Physics 7d ago

A.J. Brown, Myles Garrett, Jared Verse: Inside the NFL's June 1 blockbuster trades

Leave it to the NFL to turn a day long known in league circles for accounting into one teeming with tension -- and a manifestation of Super Bowl hopes for multiple teams spread from coast to coast. At 4:01 p.m. ET on June 1 every year, NFL teams can prorate the dead salary cap hit of a player's contract over two years if trading or cutting that player. This year's date fell on a Monday.

ESPN 2d ago

A.J. Brown trade: Answering top questions on Eagle...

The New England Patriots' No. 11 jersey has been available for the past two months -- but as the most-anticipated trade of the 2026 NFL offseason becomes official, that number now belongs to A.J. Brown. While Brown, who turns 29 on June 30, immediately becomes the Patriots' No. 1 wide receiver, the Philadelphia Eagles walk away with a 2028 first-round draft pick and a 2027 fifth-round pick while saving on dead salary cap space in 2026. It was a trade written in the tea leaves, with both...

ESPN 8d ago

Sources: Eagles trade star WR Brown to Patriots

The Eagles agreed Monday to trade star wide receiver A.J. Brown to the Patriots for a first-round draft pick in 2028 and a 2027 fifth-round pick. The fifth-round selection will be the better of New England's selections in that round of next year's draft, sources told ESPN. The trade, which has been discussed and anticipated across the NFL for months, reunites Brown and Patriots head coach Mike Vrabel.

ESPN 8d ago

UN human rights leader calls for Cuba sanctions to be ‘lifted immediately’

UN human rights leader calls for Cuba sanctions to be ‘lifted immediately’ Volker Turk, the UN’s high commissioner for human rights, warns that ‘children are dying’ as a result of US oil blockade. Volker Turk, the high commissioner for human rights at the United Nations, has issued some of his harshest criticism yet of the recent sanctions the United States has imposed on Cuba. On Monday, Turk drew a line between the increasing restrictions on the Cuban economy and reports of heightened...

Al Jazeera 1d ago

MLB post-hype check-in: What to make of former big...

Players like Corbin Carroll, Paul Skenes, Nick Kurtz and now Kevin McGonigle have spoiled it for all hyped Major League Baseball prospects in recent years: We expect instant stardom from them, forgetting that baseball, as the great Jimmy Dugan once said, is "supposed to be hard. If it wasn't hard, everyone would do it."

ESPN 5d ago

A cryogenic gas target for high-intensity radioactive ion beam production at HIRFL-RIBLL

arXiv:2606.04139v1 Announce Type: new Abstract: A liquid-nitrogen-cooled cryogenic gas target system has been developed and installed for radioactive ion beam (RIB) production at the Radioactive Ion Beam Line in Lanzhou (RIBLL). Light element gases ($\mathrm{H_2}$, $\mathrm{D_2}$, and $\mathrm{^4He}$) filled in the target cell were cooled to approximately 82-86 K with pressures up to 1000 mbar. Utilizing this target, high-quality $^{7}\mathrm{Be}$, $^{16}\mathrm{N}$, and $^{15}\mathrm{O}$...

arXiv Physics 6d ago

Confirmed screwworm case in Texas sends two biotech stocks higher

A flesh-eating parasite known as New World screwworm has been found in livestock in Texas, and traders are buzzing over potential winners in the stock market. Shares of Zoetis and Elanco Animal Health popped in Thursday's trading, and typically dormant options markets on the stocks woke up with a heavy bullish bias. Zoetis was last higher by nearly 4%, and Elanco was up 2% in midday trading.

CNBC 6d ago

Gene ancestries reveal diverse microbial associations during eukaryogenesis

Abstract The origin of eukaryotes remains a central enigma in biology1. Continuing debates agree on the pivotal role of a symbiosis between an alphaproteobacterium and an Asgard archaeon2,3. However, the nature, timing and contributions of other potential bacterial partners4,5,6 and the role of interactions with viruses7,8,9 remain contentious.

Nature 20h ago