It's confirmed: Matter is merely vacuum fluctuations

by Stephen Battersby, New Scientist, November 20, 2008

Berkeley, CA (USA) -- Matter is built on flaky foundations. Physicists have now confirmed that the apparently substantial stuff is actually no more than fluctuations in the quantum vacuum.

<< Each proton is made of three quarks, but the individual masses of these quarks only add up to about 1% of the proton's mass
(Illustration: Forschungszentrum Julich/Seitenplan/NASA/ESA/AURA-Caltech)

The researchers simulated the frantic activity that goes on inside protons and neutrons. These particles provide almost all the mass of ordinary matter.

Each proton (or neutron) is made of three quarks - but the individual masses of these quarks only add up to about 1% of the proton's mass. So what accounts for the rest of it?

Theory says it is created by the force that binds quarks together, called the strong nuclear force. In quantum terms, the strong force is carried by a field of virtual particles called gluons, randomly popping into existence and disappearing again. The energy of these vacuum fluctuations has to be included in the total mass of the proton and neutron.

But it has taken decades to work out the actual numbers. The strong force is described by the equations of quantum chromodynamics, or QCD, which are too difficult to solve in most cases.

So physicists have developed a method called lattice QCD, which models smooth space and time as a grid of separate points. This pixellated approach allows the complexities of the strong force to be simulated approximately by computer.

Gnarly calculation

Until recently, lattice QCD calculations concentrated on the virtual gluons, and ignored another important component of the vacuum: pairs of virtual quarks and antiquarks.

Quark-antiquark pairs can pop up and momentarily transform a proton into a different, more exotic particle. In fact, the true proton is the sum of all these possibilities going on at once.

Virtual quarks make the calculations much more complicated, involving a matrix of more than 10,000 trillion numbers, says Stephan Dürr of the John von Neumann Institute for Computing in Jülich, Germany, who led the team.

"There is no computer on Earth that could possibly store such a big matrix in its memory," Dürr told New Scientist, "so some trickery goes into evaluating it."

Crunch time

Several groups have been working out ways to handle these technical problems, and five years ago a team led by Christine Davies of the University of Glasgow, UK, managed to calculate the mass of an exotic particle called the B_c meson.

That particle contains only two quarks, making it simpler to simulate than the three-quark proton. To tackle protons and neutrons, Dürr's team used more than a year of time on the parallel computer network at Jülich, which can handle 200 teraflops - or 200 trillion arithmetical calculations per second.

Even so, they had to tailor their code to use the network efficiently. "We spent an enormous effort to make sure our code would make optimum use of the machine," says Dürr.

Without the quarks, earlier simulations got the proton mass wrong by about 10%. With them, Dürr gets a figure within 2% of the value measured by experiments.

Higgs field

Although physicists expected theory to match experiment eventually, it is an important landmark. "The great thing is it shows that you can get close to experiments," says Davies. "Now we know that lattice QCD works, we want to make accurate calculations of particle properties, not just mass."

That will allow physicists to test QCD, and look for effects beyond known physics. For now, Dürr's calculation shows that QCD describes quark-based particles accurately, and tells us that most of our mass comes from virtual quarks and gluons fizzing away in the quantum vacuum.

The Higgs field is also thought to make a small contribution, giving mass to individual quarks as well as to electrons and some other particles. The Higgs field creates mass out of the quantum vacuum too, in the form of virtual Higgs bosons. So if the LHC confirms that the Higgs exists, it will mean all reality is virtual.

We Need Your Help to Train the
Buddhist AI Chat Bot
NORBU!
(Neural Operator for Responsible Buddhist Understanding)



For Malaysians and Singaporeans, please make your donation to the following account:

Account Name: Bodhi Vision
Account No:. 2122 00000 44661
Bank: RHB

The SWIFT/BIC code for RHB Bank Berhad is: RHBBMYKLXXX
Address: 11-15, Jalan SS 24/11, Taman Megah, 47301 Petaling Jaya, Selangor
Phone: 603-9206 8118

Note: Please indicate your name in the payment slip. Thank you.


Dear Friends in the Dharma,

We seek your generous support to help us train NORBU, the word's first Buddhist AI Chat Bot.

Here are some ways you can contribute to this noble cause:

One-time Donation or Loan: A single contribution, regardless of its size, will go a long way in helping us reach our goal and make the Buddhist LLM a beacon of wisdom for all.

How will your donation / loan be used? Download the NORBU White Paper for details.



For Malaysians and Singaporeans, please make your donation to the following account:

Account Name: Bodhi Vision
Account No:. 2122 00000 44661
Bank: RHB

The SWIFT/BIC code for RHB Bank Berhad is: RHBBMYKLXXX
Address: 11-15, Jalan SS 24/11, Taman Megah, 47301 Petaling Jaya, Selangor
Phone: 603-9206 8118

Note: Please indicate your purpose of payment (loan or donation) in the payment slip. Thank you.

Once payment is banked in, please send the payment slip via email to: editor@buddhistchannel.tv. Your donation/loan will be published and publicly acknowledged on the Buddhist Channel.

Spread the Word: Share this initiative with your friends, family and fellow Dharma enthusiasts. Join "Friends of Norbu" at: https://www.facebook.com/groups/norbuchatbot. Together, we can build a stronger community and create a positive impact on a global scale.

Volunteer: If you possess expertise in AI, natural language processing, Dharma knowledge in terms of Buddhist sutras in various languages or related fields, and wish to lend your skills, please contact us. Your knowledge and passion could be invaluable to our project's success.

Your support is part of a collective effort to preserve and disseminate the profound teachings of Buddhism. By contributing to the NORBU, you become a "virtual Bodhisattva" to make Buddhist wisdom more accessible to seekers worldwide.

Thank you for helping to make NORBU a wise and compassionate Buddhist Chatbot!

May you be blessed with inner peace and wisdom,

With deepest gratitude,

Kooi F. Lim
On behalf of The Buddhist Channel Team


Note: To date, we have received the following contributions for NORBU:
US$ 75 from Gary Gach (Loan)
US$ 50 from Chong Sim Keong
MYR 300 from Wilson Tee
MYR 500 from Lim Yan Pok
MYR 50 from Oon Yeoh
MYR 200 from Ooi Poh Tin
MYR 300 from Lai Swee Pin
MYR 100 from Ong Hooi Sian
MYR 1,000 from Fam Sin Nin
MYR 500 from Oh teik Bin
MYR 300 from Yeoh Ai Guat
MYR 300 from Yong Lily
MYR 50 from Bandar Utama Buddhist Society
MYR 1,000 from Chiam Swee Ann
MYR 1,000 from Lye Veei Chiew
MYR 1,000 from Por Yong Tong
MYR 80 from Lee Wai Yee
MYR 500 from Pek Chee Hen
MYR 300 from Hor Tuck Loon
MYR 1,000 from Wise Payments Malaysia Sdn Bhd
MYR 200 from Teo Yen Hua
MYR 500 from Ng Wee Keat
MYR 10,000 from Chang Quai Hung, Jackie (Loan)
MYR 10,000 from K. C. Lim & Agnes (Loan)
MYR 10,000 from Juin & Jooky Tan (Loan)
MYR 100 from Poh Boon Fong (on behalf of SXI Buddhist Students Society)
MYR 10,000 from Fam Shan-Shan (Loan)
MYR 10,000 from John Fam (Loan)
MYR 500 from Phang Cheng Kar
MYR 100 from Lee Suat Yee
MYR 500 from Teo Chwee Hoon (on behalf of Lai Siow Kee)
MYR 200 from Mak Yuen Chau

We express our deep gratitude for the support and generosity.

If you have any enquiries, please write to: editor@buddhistchannel.tv


TOP