New Mexico's state House of Representatives passed the "Energy Transition Act" on Tuesday, where it's expected to be signed quickly by Governor Michelle Lujan Grisham. The bill "commits the state to getting 100 percent of its energy from carbon-free sources by 2045," reports Ars Technica. From the report: The bill includes interim goals mandating that 50 percent of the state's energy mix be renewable by 2030 and 80 percent of the energy mix be renewable by 2040. The state currently buys no nuclear power, which is not renewable but qualifies as a zero-carbon energy source. The bill passed yesterday does not require that 100 percent of the state's energy be renewable by 2045; it just specifies that no electricity come from a carbon-emitting source.

New Mexico is unique among these states because it is a relatively coal-heavy state, generating 1.5 gigawatts of coal-fired electricity as of November 2018. Last month, the state's Public Service Company of New Mexico had slated its 847MW San Juan coal plant for shut down by 2022, but a New York hedge fund called Acme Equities swooped in with an offer to buy the 46-year-old plant. According to Power Magazine, Acme intends to retrofit the plant with carbon capture and sequestration technology. If the deal goes through, Acme would use the captured carbon in enhanced oil recovery, where carbon is forced into older or weak oil wells to improve the pressure of the well and extract more oil. But with the passage of this bill, Acme's offer may not stand. New Mexico In Depth writes that the bill puts "$30 million toward the clean-up of the [San Juan] coal-fired power plant and the mine that supplies it and $40 million toward economic diversification efforts in that corner of the state and support for affected power plant employees and miners."

Valve has announced the "early beta" release of Steam Link Anywhere, which will enable streamed gaming to any compatible device, and Steam Networking Sockets APIs, granting developers access to the technology and infrastructure that underlies CS:GO and Dota 2. PC Gamer reports: Steam Link Anywhere is an extension of Steam Link that will enable users to connect to their PCs and play games from anywhere (thus the name), rather than being limited to a local network. It's compatible with both the Steam Link hardware and app, and will be rolled out automatically (and freely) to everyone who owns the hardware with beta firmware installed, the Android app beta, or the Raspberry Pi app. You'll also need to be enrolled in the Steam client beta, and have the latest version installed. Assuming you've got all that covered, you'll see an "Other Computer" option on the screen when searching for computers to connect to via Steam Link. Select that, follow the instructions, and you'll be set. Valve didn't provide specific network requirements but said you'll need "a high upload speed from your computer and strong network connection to your Steam Link device" in order to use it.

Steam Networking Sockets APIs isn't as flashy (and that "flash" is definitely relative) but is aimed squarely at developers, and could be even more significant to Steam's fortunes given the pressure it's facing from the Epic Games Store: It enables developers to run their game traffic through Valve's own private gaming network, providing players "faster and more secure connections." It's free for developers, and "a large portion" of the API is now open source, which could be a pretty big draw for devs look to incorporate online play with a minimum of fuss. If that's your bag, you can get more detailed information at steamcommunity.com, and Valve will be talking about the new feature in-depth at a Game Developer's Conference panel next Thursday, March 21.

Researchers at Google, the University of Massachusetts at Amherst, and the University of California Santa Barbara has solved one of the biggest limitations with quantum computing: all the control and readout circuits of quantum computer systems must be at room temperature, while their superconducting qubits live in a cryogenic enclosure at less than 1 kelvin. "For today's sub-100-qubit systems, there's enough space for specialized RF cabling to come in and out of the enclosure," reports IEEE Spectrum. "But to scale up to the million-qubit systems needed to do really cool stuff, there just won't be enough room."

At the IEEE International Solid-State Circuits Conference in San Francisco last month, the researchers reported making a key control circuit in CMOS that will work at cryogenic temperatures. They described it as "a high-performance, low-power pulse modulator needed to program the qubits." From the report: "The current approach is OK for now," says Joseph Bardin, a University of Massachusetts at Amherst associate professor of electrical and computer engineering who designed the IC while on sabbatical at Google. "But it's not scalable to a million qubits." For Google's 72-qubit quantum processor there are already 168 coaxial cables going into the refrigerator and connecting to the 10-millikelvin quantum processor. The pulse modulator IC Bardin worked on is used to encode quantum states on a qubit in order to execute a program. Quantum computers get their parallelizing power because qubits don't have to be just 0 or 1, like the bits in an ordinary computer. Instead, they can be a mix of those states. The pulse modulator uses a specific set of RF frequencies to produce that mix.

"The biggest challenge is heat dissipation," explains Bardin. The qubits are at 10 millikelvins, but the control circuits, which necessarily throw off heat, can't be held that low. The researchers aimed for 4 K for the control IC. "However, at 4 K, thermodynamics limits the efficiency of cooling. The best you're going to get is about 1 percent efficiency. In practice it's worse." So the power dissipated by the electronics per qubit had to be only in the milliwatt range. That power constraint had to be balanced with the need for control accuracy, Bardin says. This was complicated by how differently CMOS transistors behave at 4 k, which is a more than 200 degrees below what silicon foundries' simulation models can deal with. Bardin and the Google team managed to design the IC in a way that compensates for these problems and achieves the balance between power consumption and performance. The resulting IC consumed less than 2 mW, yet it was able to put a qubit through its paces in testing.

An anonymous reader quotes a report from Ars Technica: A report from Business Insider claims that Google has axed "dozens" of employees from its laptop and tablet division. BI's sources describe the move as "roadmap cutbacks" and also say that Google will likely "pare down the portfolio" in the future. Google's Hardware division is run by Rick Osterloh and is expected to launch a game streaming console later this month. The division is responsible for the Pixel phones, Google Home speakers, the Chromecast, Google Wi-Fi, and lately, the Nest smart home division.

You could also call the "laptop and tablet" division the "Chrome OS" division. Both the Pixelbook and Pixel Slate ran Chrome OS, and they are the company's only products supporting that operating system. Is Chrome OS going to be OK? BI notes that manufacturing roles in the hardware division haven't changed, so in the short-term, Google's product lineup is likely to keep going. The report says that Google had "a bunch of stuff in the works" that now probably won't see the light of day. The move comes after the group received pressure to turn Google Hardware into "a real business" from higher-ups at Google/Alphabet. It's easy to imagine that the laptops and tablets -- which are Google Hardware's most expensive products -- were selling the worst.