understanding curvature tensor equation
Updated: 2012-02-06 11:53:05
hi,
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I am trying to understand the meaning of the following equation in the simplest way possible *
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Editor’s note: This article comes from US LHC intern Amy Dusto, who is currently working as a communicator at CERN. She is introducing LHC Lunch, a series of articles and videos she created while getting to know some of the members of experiments at the Large Hadron Collider from U.S. institutions. The busy cafeteria known [...]
Since 2000, the three Sloan Digital Sky Surveys (SDSS I, II, and III) have surveyed well over a quarter of the night sky, producing the biggest 3-D color map of the Universe ever made. Now, scientists have used this visual information for the most accurate computation yet of how matter clumped together – from a time when the universe was only half its present age until now.
Most Fermilab personnel have learned to ignore the ubiquitous booms, hums, growls and crackles of Fermilab machinery. But composer Mason Bates places these sounds center stage in his new piece "Alternative Energy."
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.26 Anatomy of an aurora 2012.01.20 Getting layed 2012.01.19 Location , Location , Location Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01 Dispatch from the intensity frontier : Muon g-2
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.26 Anatomy of an aurora 2012.01.20 Getting layed 2012.01.19 Location , Location , Location Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01 Dispatch from the intensity frontier : Muon g-2
The only laboratory in the United States dedicated entirely to particle physics recently released its plan for the next two decades.
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.20 Getting layed 2012.01.19 Location , Location , Location 2012.01.19 Visiting LHCb Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01 Dispatch from the intensity frontier : Muon g-2
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.20 Getting layed 2012.01.19 Location , Location , Location 2012.01.19 Visiting LHCb Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01 Dispatch from the intensity frontier : Muon g-2
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.20 Getting layed 2012.01.19 Location , Location , Location 2012.01.19 Visiting LHCb Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01 Dispatch from the intensity frontier : Muon g-2
Daresbury’s high-intensity proton accelerator, called EMMA, gains its technological edge through an accelerator concept nearly abandoned a half century ago.
Over the course of more than three decades of planning and operation, a tremendous amount of computing innovation was necessary to keep the data flowing and physics results coming at Fermilab's Tevatron. In fact, computing continues to do its work. Although the proton and antiproton beams no longer brighten the Tevatron’s tunnel, physicists expect to be using computing to continue analyzing a vast quantity of collected data for several years to come.
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Quantum Diaries Thoughts on work and life from particle physicists from around the . world Home About Quantum Diaries Latest Posts All Blogs John Felde UC Davis USA View Blog Read Bio Latest Posts 2011.11.22 Recent Events at UC Davis 2011.11.09 First Double Chooz Neutrino Oscillation Result 2011.09.22 Physics GRE Bootcamp USLHC USLHC USA View Blog Read Bio Latest Posts 2012.01.10 New State Discovered by the ATLAS Collaboration 2011.12.31 A new year , a new outlook 2011.12.27 Does the world want it to be like that Frank Simon MPI for Physics Germany View Blog Read Bio Latest Posts 2011.12.14 After the talk is before the talk 2011.10.24 Breathe 2011.10.22 The CLIC Physics and Detectors CDR Flip Tanedo USLHC USA View Blog Read Bio Latest Posts 2011.12.12 The Night Before Higgsmas” 2011.12.01
Submissions opened today for Google’s second annual science fair. Last year’s winner earned a trip to CERN laboratory in Europe, among other things. This year not one, but two particle physics institutions will contribute to the fair. Engineer Steve Myers, director of accelerators and technology at CERN, and physicist Young-Kee Kim, deputy director of Fermilab, will each participate on the final judging panel. The grand prize winner will receive a trip to visit both labs.
Two teams of physicists at the U.S. Department of Energy’s Fermilab and Lawrence Berkeley National Laboratory have independently made the largest direct measurements of the invisible scaffolding of the universe, building maps of dark matter using new methods that, in turn, will remove key hurdles for understanding dark energy with ground-based telescopes.
: skip to main skip to sidebar The Science of Conundrums THE IMPACT OF MEGASCIENCE Friday , December 30, 2011 Fukushima In 40 Year Cold Shutdown Alan Gillis Reports Nine months after the 8.9 earthquake and tsunami , the Japanese Government claims that the 3 damaged nuclear reactors at Fukushima Daiichi are in cold shutdown conditions . Yes , if you add conditions which they did . At best with all the jerry-rigging to cool down the melted reactor cores and melted spent fuel pond at Reactor 4, using a mile of rubber hose to patch in new pumps , also add Temporary to cold shutdown conditions and 40 years to dismantle the industrial carnage in the Japanese government's new plan . That is if all goes well and new technologies are developed to safely remove melted cores and rods and dispose of
I apologize, dear galleons. My mind has been elsewhere the past few days. Namely, I’ve been pl
Here is some exciting news from the world of particle physics. I wrote about this once before and it
(Before we begin: all uses of the term “vacuum” in this discussion do not denote the abs
The news from Geneva this morning is in. Essentials: what we’re seeing is pretty consistent with the existence of a Higgs boson around 123-126 GeV. The data aren’t nearly conclusive enough to say that it’s definitely there. But the LHC is purring along, and a year from now we’ll know a lot more. It’s like [...]
Tomorrow, Tuesday 13 December, there will be a couple of seminars at CERN presented by Fabiola Gianotti and Guido Tonelli, speaking respectively for the ATLAS and CMS collaborations at the LHC. They will be updating us on the current status of the search for the Higgs boson. The seminars will be webcast from CERN, and [...]