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Commercially Available Silicon Quantum Computer Moves Forward With Quietest Bits On Record

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KEY POINTS

  • Physicists achieve a noise level 10 times lower than the previous record
  • Demonstration proves to take a major step closer to a full-scale silicon quantum processor 
  • Next step could be a 10-qubit prototype quantum integrated processor by 2023

The lowest noise level on record for a semiconductor quantum bit has been demonstrated by a team of quantum physicists, bringing the development of a commercially available silicon quantum computer one step forward to possibility. 

In a study published in Advanced Materials, the physicists said they were able to achieve a noise level 10 times lower than previously recorded for any semiconductor qubit. Specifically, they demonstrated a low-level charge noise of  S0 = 0.0088 ± 0.0004 μeV2 Hz−1. 

As a next step, the team is now looking forward to demonstrating the capability required to produce a reliable 10-qubit prototype quantum integrated processor by 2023. 

“Our team is now working towards delivering all of these key results on a single device – fast, stable, high fidelity and with long coherence times – moving a major step closer to a full-scale quantum processor in silicon,” Michelle Simmons, director for Center for Quantum Computation and Communication Technology (CQC2T) and Scientia professor of quantum physics in the Faculty of Science at the University of New South Wales, said in a press release. 

The team explained that, for a silicon quantum computer to perform reliable and applicable solutions, it should generate quantum information close to 100% accuracy. However, achieving such accuracy was impossible due to what physicists call charge noise. 

Imperfections in the material environment that hosts qubits result in charge noise. It impedes the proper encoding of information on qubits, affecting the information accuracy altogether. By separating the qubits from the surface and interface states, the team was able to demonstrate the lowest noise

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U moves spring break to April at Twin Cities campus because of COVID-19

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The University of Minnesota has modified spring break at its five campuses because of the COVID-19 pandemic, moving the weeklong vacation from March to April for Twin Cities and Rochester students and spreading the days across the semester for those attending Duluth, Morris and Crookston.

Additionally, U leaders say social distancing and masking requirements will remain in place this spring and professors will again be given the choice of teaching online or in person.

“Each campus engaged in extensive consultation with their respective communities and governance structures,” U Executive Vice President and Provost Rachel Croson said of the spring decisions during a Board of Regents meeting Thursday.

Students and faculty at the Twin Cities and Rochester campuses “strongly preferred” keeping the five-day break, Croson said. Spring break at the two campuses will now be held April 5-9. It will coincide with the spring breaks of Minneapolis’ and St. Paul’s public school districts.

At the university’s Morris campus, spring break days will be broken up and spread across the semester. Crookston’s spring break will be replaced with one midweek study day plus two extra study days to be taken between the last day of classes and the week of final exams. Duluth students will take the Monday and Tuesday of their spring break week off, with the remaining three days to be used as study days between the end of spring instruction and exams week.

The spring break delay at the Twin Cities and Rochester campuses will allow for more instruction to be completed before students take time off. There is concern that students may travel away during the vacation period and potentially carry COVID-19 back to campus.

In the coming months, administrators will decide whether to resume some in-person instruction after spring break or fully pivot to distance learning,

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Sergio Garcia moves up career money list

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Sergio Garcia earned $1.188 million for his 11th career PGA Tour victory at the Sanderson Farms Championship. That was enough to push him to ninth on the Tour’s all-time earnings list, past Matt Kuchar, with $51,726,497.

Here’s a look at the purse payout and FedExCup point distribution for Garcia and the rest of the field who made the cut in the Mississippi.

Finish  

Player  

FedEx  

Earnings ($)  

1

Sergio Garcia

500.00

1,188,000.00

2

Peter Malnati

300.00

719,400.00

3

J.T. Poston

190.00

455,400.00

T4

Keegan Bradley

122.50

297,000.00

T4

Henrik Norlander

122.50

297,000.00

T6

Cameron Davis

83.33

201,300.00

T6

Charley Hoffman

83.33

201,300.00

T6

Denny McCarthy

83.33

201,300.00

T6

Tyler McCumber

83.33

201,300.00

T6

Scott Stallings

83.33

201,300.00

T6

Kristoffer Ventura

83.33

201,300.00

T12

Wesley Bryan

58.00

131,010.00

T12

Stewart Cink

58.00

131,010.00

T12

MJ Daffue

131,010.00

T12

C.T. Pan

58.00

131,010.00

T12

Rory Sabbatini

58.00

131,010.00

T17

Corey Conners

46.00

90,750.00

T17

Maverick McNealy

46.00

90,750.00

T17

Matthew NeSmith

46.00

90,750.00

T17

Chase Seiffert

46.00

90,750.00

T17

Brandt Snedeker

46.00

90,750.00

T17

Aaron Wise

46.00

90,750.00

T23

Kevin Chappell

35.60

59,070.00

T23

Doug Ghim

35.60

59,070.00

T23

Zach Johnson

35.60

59,070.00

T23

Sebastián Muñoz

35.60

59,070.00

T23

Camilo Villegas

35.60

59,070.00

T28

Tom Hoge

28.75

46,200.00

T28

Sungjae Im

28.75

46,200.00

T28

Martin Laird

28.75

46,200.00

T28

Doc Redman

28.75

46,200.00

T32

Adam Schenk

23.50

39,380.00

T32

Charl Schwartzel

23.50

39,380.00

T32

Roger Sloan

23.50

39,380.00

T35

Emiliano Grillo

20.50

35,145.00

T35

Bill Haas

20.50

35,145.00

T37

Michael Gligic

16.00

28,710.00

T37

Talor Gooch

16.00

28,710.00

T37

Brian Harman

16.00

28,710.00

T37

Si Woo Kim

16.00

28,710.00

T37

Anirban Lahiri

16.00

28,710.00

T37

Scottie Scheffler

16.00

28,710.00

T37

Cameron Tringale

16.00

28,710.00

T44

Joseph Bramlett

11.50

22,770.00

T44

Hank Lebioda

11.50

22,770.00

T46

Ryan Armour

9.00

17,980.29

T46

Rafa

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AP Top 25 poll: Georgia moves up, Oklahoma and UCF fall out of new college football rankings

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After a Week 5 that saw eight ranked teams fall, changes were bound to come to the newest update of the college football rankings. What we didn’t expect was the extent of the changes as the AP Top 25 poll released on Sunday featured five teams dropping out from the rankings and a shift in the top five. 

Georgia overtook Florida for the No. 3 spot, behind No. 1 Clemson and No. 2 Alabama, with the Gators falling back to No. 4 by the slim margin of just 40 voting points (1,380 to 1,340). No. 5 Notre Dame, No. 6 Ohio State and No. 7 Miami held their order as Auburn took a fall from No. 7 to No. 13 after its loss to the Bulldogs, and North Carolina made its arrival into the top-10 with a four-spot jump to No. 8. 

Oklahoma had one of the most notable falls in the poll this week, dropping from No. 18 to outside the top 25 after losing at Iowa State on Saturday night. It’s the first time the Sooners are unranked in the AP Top 25 poll since 2014 and the first 0-2 start in Big 12 play since 1998. There should be an opportunity for Oklahoma to work its way back into the rankings, but even next week’s much-anticipated rivalry game against Texas has lost some of its juice after the Longhorns fell to No. 22 following a home loss to TCU. 

Speaking of the Big 12, Oklahoma State was one of the biggest risers in this week’s poll, jumping from No. 17 to No. 10 as it remains as the only undefeated team in the conference. 

Check out the full AP Top 25 poll below: 

  1. Clemson (52 first-place votes)
  2. Alabama (8)
  3. Georgia 
  4. Florida 
  5. Notre Dame 
  6. Ohio State (2)
  7. Miami

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Tropical Storm Gamma moves inland over Yucatan Peninsula

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Oct. 3 (UPI) — The record-breaking nature of the 2020 Atlantic Tropical Season continues as Tropical Storm Gamma strikes the Yucatan Peninsula of Mexico.

Gamma became a tropical storm, and thus gained its name, on Friday evening as it strengthened in the northwestern Caribbean Sea. In doing so, Tropical Storm Gamma became only the second of its name to exist in Atlantic Basin history, and the earliest ever, beating out the Gamma of 2005.

At 12:45 p.m. EST on Saturday, Gamma made landfall near Tulum, Mexico, as a strong tropical storm.

The U.S. National Hurricane Center said that a weather station at Xel-Ha Park, along the Yucatan coast just north of Tulum, reported sustained winds of 55 mph (89 km/h) and wind gusts up to 68 mph (109 km/h).

On the island of Cozumel, just offshore from the Yucatan Peninsula, wind gusts of 40 mph (64 km/h) were reported early Saturday afternoon.

Gamma is expected to continue to batter the Yucatan Peninsula through the weekend with heavy rain and gusty winds before shifting into the Gulf of Mexico.

On Friday, tropical storm watches and warnings were issued for parts of the Yucatan Peninsula.

The Governor of the state of Quinatana Roo, which contains cities like Tulum, Playa del Carmen, and Cancun, advised on Twitter that residents shelter at home and report emergencies to the appropriate authorities.

According to Noticaribe, one of the hardest-hit areas thus far is Playa del Carmen, where the State Coordination of Civil Protection issued a red alert on Saturday morning, due to Gamma’s impending impacts.

Reports of fallen trees, blackouts and flooding in main streets were noted by several emergency agencies in the city.

Just to the north, in Puerto Morelos, the local government set up two temporary shelters. Fire fighters, public services and civil protection

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