I still believed in god (I am now an atheist) when I heard the following question at a seminar, first posed by Einstein, and was stunned by its elegance and depth: If there is a god who created the entire universe and all of its laws of physics, does god follow gods own laws? Or can god supersede his own laws, such as travelling faster than the speed of light and thus being able to be in two different places at the same time? Could the answer help us prove whether or not god exists or is this where scientific empiricism and religious faith intersect, with no true answer?
I was in lockdown when I received this question and was instantly intrigued. It is no wonder about the timing tragic events, such as pandemics, often cause us to question the existence of god: if there is a merciful god, why is a catastrophe like this happening?
So the idea that god might be bound by the laws of physics which also govern chemistry and biology and thus the limits of medical science was an interesting one to explore.
If god was not able to break the laws of physics, she arguably would not be as powerful as you had expected a supreme being to be. But if she could, why have not we seen any evidence of the laws of physics ever being broken in the universe?
To tackle the question, let us break it down a bit. First, can god travel faster than light? Let us just take the question at face value. Light travels at an approximate speed of 300,000 kilometres every second. We learn at school that nothing can travel faster than the speed of light not even the USS Enterprise in Star Trek when its dilithium crystals are set to max.
But is it true? A few years ago, a group of physicists posited that particles called tachyons travelled above light speed. Fortunately, their existence as real particles is deemed highly unlikely. If they did exist, they would have an imaginary mass and the fabric of space and time would become distorted leading to violations of causality (and possibly a headache for god).
It seems, so far, that no object has been observed that can travel faster than the speed of light. This in itself does not say anything at all about god. It merely reinforces the knowledge that light travels very fast indeed.
Things get a bit more interesting when you consider how far light has travelled since the beginning. Assuming a traditional big bang cosmology and a light speed of 300,000 km/s, then we can calculate that light has travelled roughly 10 to the 24th power kilometres in the 13.8 billion years of the universes existence. Or rather, the observable universes existence.
The universe is expanding at a rate of approximately 70km/s per Mpc (1 Mpc = 1 Megaparsec ~ 30 million km), so current estimates suggest that the distance to the edge of the universe is 46 billion light years. As time goes on, the volume of space increases and light has to travel for longer to reach us.
There is a lot more universe out there than we can view, but the most distant object that we have seen is a galaxy, GN-z11, observed by the Hubble Space Telescope. This is approximately 13.4 billion light years away, meaning that it has taken 13.4 billion years for light from the galaxy to reach us. But when the light set off, the galaxy was only about 3 billion light years away from our galaxy, the Milky Way.
We cannot observe or see across the entirety of the universe that has grown since the big bang because insufficient time has passed for light from the first fractions of a second to reach us.
Some argue that we therefore cannot be sure whether the laws of physics could be broken in other cosmic regions perhaps they are just local, accidental laws. And that leads us on to something even bigger than the universe.
Many cosmologists believe that the universe may be part of a more extended cosmos, a multiverse, where many different universes co-exist but do not interact. The idea of the multiverse is backed by the theory of inflation the idea that the universe expanded hugely before it was 10 to the minus 32nd power seconds old. Inflation is an important theory because it can explain why the universe has the shape and structure that we see around us.
But if inflation could happen once, why not many times? We know from experiments that quantum fluctuations can give rise to pairs of particles suddenly coming into existence, only to disappear moments later.
And if such fluctuations can produce particles, why not entire atoms or universes? It is been suggested that, during the period of chaotic inflation, not everything was happening at the same rate quantum fluctuations in the expansion could have produced bubbles that blew up to become universes in their own right.
But how does god fit into the multiverse? One headache for cosmologists has been the fact that our universe seems fine-tuned for life to exist. The fundamental particles created in the big bang had the correct properties to enable the formation of hydrogen and deuterium substances which produced the first stars.
The physical laws governing nuclear reactions in these stars then produced the stuff that lifes made of carbon, nitrogen and oxygen. So how come all the physical laws and parameters in the universe happen to have the values that allowed stars, planets and ultimately life to develop?
Some argue it is just a lucky coincidence. Others say we should not be surprised to see biofriendly physical laws they after all produced us, so what else would we see? Some theists, however, argue it points to the existence of a god creating favourable conditions.
But god is not a valid scientific explanation. The theory of the multiverse, instead, solves the mystery because it allows different universes to have different physical laws. So it is not surprising that we should happen to see ourselves in one of the few universes that could support life. Of course, you cannot disprove the idea that a god may have created the multiverse.
This is all very hypothetical, and one of the biggest criticisms of theories of the multiverse is that because there seem to have been no interactions between our universe and other universes, then the notion of the multiverse cannot be directly tested.
Now let us consider whether god can be in more than one place at the same time. Much of the science and technology we use in space science is based on the counter-intuitive theory of the tiny world of atoms and particles known as quantum mechanics.
The theory enables something called quantum entanglement: spookily connected particles. If two particles are entangled, you automatically manipulate its partner when you manipulate it, even if they are very far apart and without the two interacting. There are better descriptions of entanglement than the one I give here but this is simple enough that I can follow it.
Imagine a particle that decays into two sub-particles, A and B. The properties of the sub-particles must add up to the properties of the original particle this is the principle of conservation. For example, all particles have a quantum property called spin roughly, they move as if they were tiny compass needles.
If the original particle has a spin of zero, one of the two sub-particles must have a positive spin and the other a negative spin, which means that each of A and B has a 50% chance of having a positive or a negative spin. (According to quantum mechanics, particles are by definition in a mix of different states until you actually measure them.)
The properties of A and B are not independent of each other they are entangled even if located in separate laboratories on separate planets. So if you measure the spin of A and you find it to be positive. Imagine a friend measured the spin of B at exactly the same time that you measured A. In order for the principle of conservation to work, she must find the spin of B to be negative.
But and this is where things become murky like sub-particle A, B had a 50:50 chance of being positive, so its spin state became negative at the time that the spin state of A was measured as positive.
In other words, information about spin state was transferred between the two sub-particles instantly. Such transfer of quantum information apparently happens faster than the speed of light. Given that Einstein himself described quantum entanglement as spooky action at a distance, I think all of us can be forgiven for finding this a rather bizarre effect.
So there is something faster than the speed of light after all: quantum information. This does not prove or disprove god, but it can help us think of god in physical terms maybe as a shower of entangled particles, transferring quantum information back and forth, and so occupying many places at the same time? Even many universes at the same time?
I have this image of god keeping galaxy-sized plates spinning while juggling planet-sized balls tossing bits of information from one teetering universe to another, to keep everything in motion. Fortunately, God can multitask keeping the fabric of space and time in operation. All that is required is a little faith.
Has this essay come close to answering the questions posed? I suspect not: if you believe in god (as I do), then the idea of god being bound by the laws of physics is nonsense because God can do everything, even travel faster than light. If you do not believe in god, then the question is equally nonsensical, because there is not a god and nothing can travel faster than light. Perhaps the question is really one for agnostics, who do not know whether there is a god.
This is indeed where science and religion differ. Science requires proof, religious belief requires faith. Scientists do not try to prove or disprove gods existence because they know there is not an experiment that can ever detect god. And if you believe in god, it does not matter what scientists discover about the universe any cosmos can be thought of as being consistent with god.
Our views of god, physics or anything else ultimately depends on perspective. But let us end with a quotation from a truly authoritative source. No, it is not the bible. Nor is it a cosmology textbook. It is from Reaper Man by Terry Pratchett: Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it.
Monica Grady is a Professor of Planetary and Space Sciences at The Open University.
This article first appeared on The Conversation.
Originally posted here:
- How Quantum Physics Allows Us To See Back Through Space And Time - Forbes - May 14th, 2021
- Is everything predetermined? Why physicists are reviving a taboo idea - New Scientist - May 14th, 2021
- New evidence for electron's dual nature found in a quantum spin liquid . New experiments conducted at - Princeton University - May 14th, 2021
- A wobbling muon could unlock mysteries of the universe - Vox.com - May 14th, 2021
- Quantum science, particle physics and nanoscale motors awarded support from Eric and Wendy Schmidt Transformative Tech Fund - Princeton University - May 14th, 2021
- Quantum Computing In Finance Where We Stand And Where We Could Go - Science 2.0 - May 14th, 2021
- Pathogenic, auto-immune or viral, all diseases are actually epigenetic - The Times of India Blog - May 14th, 2021
- Outlook on the Quantum Technology Global Market to 2026 - - GlobeNewswire - May 14th, 2021
- Researchers confront major hurdle in quantum computing - University of Rochester - May 9th, 2021
- Can a Patent Be Valid and Invalid at the Same Time? - Bloomberg Law - May 9th, 2021
- Breaking the Laws of Physics: Steering Light to Places It Isnt Supposed to Go - SciTechDaily - May 9th, 2021
- Are We on the Brink of a New Age of Scientific Discovery? - SciTechDaily - May 9th, 2021
- Can you really put a price on your college major? - The Boston Globe - May 9th, 2021
- Physicist and jazz pianist combines music and science at Rochester - University of Rochester - May 7th, 2021
- On the marvels of physics | symmetry magazine - Symmetry magazine - May 7th, 2021
- What financial crises and quantum mechanisms have in common - The New Times - May 7th, 2021
- MIT Researcher Says UFO Research Could Lead to New Laws of Physics - Futurism - May 7th, 2021
- Collins Aerospace upgrades US Navy C-130 fleet with long-lasting wheels and carbon brakes - PRNewswire - May 7th, 2021
- Andy Weirs New Space Odyssey - The New York Times - May 3rd, 2021
- The coherence of light is fundamentally tied to the quantum coherence of the emitting particle - Science Advances - May 3rd, 2021
- The battle for free will in the face of determinism - The Guardian - May 3rd, 2021
- Tulane part of Navy/Army-funded research on improving communication - News from Tulane - May 3rd, 2021
- A clocks accuracy may be tied to the entropy it creates - Science News Magazine - May 3rd, 2021
- Wellness Wednesday advice: If going to be sad? Don't! - Campus Times - May 3rd, 2021
- Beyond Books: Creative ways to combat the summer slide - Chillicothe Gazette - May 3rd, 2021
- #PulpNonFiction: Advertisers, be clear about what you want to say and why! - Bizcommunity.com - May 3rd, 2021
- Q&A: Are We on the Brink of a New Age of Scientific Discovery? - University of Virginia - May 3rd, 2021
- In Quantum Physics, Reality Really Is What We Choose To Observe - Walter Bradley Center for Natural and Artificial Intelligence - April 21st, 2021
- Multiple Realities | Physics - Denison University - April 21st, 2021
- IISER physicist Prof Arvind is Punjabi University VC - The Tribune - April 21st, 2021
- Theoretical Physicist Prof Arvind appointed Punjabi Varsity Vice Chancellor - The Tribune - April 21st, 2021
- A cosmologist throws light on a universe of bias - Salon - April 21st, 2021
- Recent Reports Of Overturned Scientific Theory Are Premature - Forbes - April 21st, 2021
- Helgoland by Carlo Rovelli - read an exclusive extract - RTE.ie - April 17th, 2021
- Researchers Visualize the Motion of Vortices in Quantum Superfluid Turbulence - SciTechDaily - April 17th, 2021
- Will we ever know exactly how the universe ballooned into existence? - Livescience.com - April 17th, 2021
- 'The Disordered Cosmos', A Contemplation of the Exclusionary Culture of Physics - The Wire Science - April 17th, 2021
- Albert Einstein Death Anniversary: How did the greatest physicists of all time die? - Free Press Journal - April 17th, 2021
- Half Life traces family complexities for a Milwaukee physics teacher - The Globe and Mail - April 17th, 2021
- Scott Aaronson Winner of 2020 ACM Prize In Computing - iProgrammer - April 17th, 2021
- Book Review: A Cosmologist Throws Light on a Universe of Bias - Undark Magazine - April 17th, 2021
- Realization of an ideal Weyl semimetal band in a quantum gas with 3D spin-orbit coupling - Science Magazine - April 17th, 2021
- Quantum computers are revealing an unexpected new theory of reality - New Scientist - April 15th, 2021
- Student's physics homework picked up by Amazon quantum researchers - News - The University of Sydney - April 15th, 2021
- The Big Theoretical Physics Problem At The Center Of The 'Muon g-2' Puzzle - Forbes - April 15th, 2021
- 615 Million Euros Awarded to Quantum Delta NL for Quantum Research in the Netherlands - HPCwire - April 15th, 2021
- The God Equation Review: One String Theory to Rule Them All - The Wall Street Journal - April 15th, 2021
- The Disordered Cosmos review: An insider take on physics and injustice - New Scientist News - April 15th, 2021
- Course explores 'Magic, Witchcraft and Healing' > News > USC Dornsife - USC Dornsife College of Letters, Arts and Sciences - April 15th, 2021
- How matters hidden complexity unleashed the power of nuclear physics - Science News Magazine - April 15th, 2021
- Scientists Perform First-ever Ultracold Atom Interferometry in Space, Leading to Possible Physics Breakthroughs - Science Times - April 15th, 2021
- The windswept German island that inspired quantum physics - Spectator.co.uk - April 6th, 2021
- Junior wins Goldwater scholarship | The Source | Washington University in St. Louis - Washington University Record - April 6th, 2021
- Raytheon Technologies Announces $500 Million Social Impact Initiative - PRNewswire - April 6th, 2021
- Raytheon Technologies to release first quarter results on April 27, 2021 - CapeNews.net - April 6th, 2021
- An Interstellar Trip with Einstein, Newton, and Tesla - EE Times India - April 6th, 2021
- Searching for New Physics in the Subatomic World - SciTechDaily - April 6th, 2021
- QCI Expands Sales and Marketing Team to Accelerate Growth and Advance Enterprise Adoption of Quantum Computing - GlobeNewswire - April 6th, 2021
- Quantum Physics to Disrupt Geospatial Industry over the Coming Decade - GIM International - April 4th, 2021
- Imaginarity: New Paper Says The Imaginary Part Of Quantum Mechanics Can Be Observed - Science 2.0 - April 4th, 2021
- The mystery of the muon's magnetism | symmetry magazine - Symmetry magazine - April 4th, 2021
- Your Guide to Products and Technologies That Are Pseudoscience - Interesting Engineering - April 4th, 2021
- 6 Quantum Computing Stocks to Invest in This Decade - Investment U - April 4th, 2021
- What if youre living in a simulation, but theres no computer? - The Next Web - April 4th, 2021
- Quantum physics: what to expect - Study International News - March 31st, 2021
- Helgoland by Carlo Rovelli review a meditation on quantum theory - The Guardian - March 31st, 2021
- 'Spacekime theory' could speed up research and heal the rift in physics - Big Think - March 31st, 2021
- Some Black Holes Are Impossible In Our Universe - Forbes - March 31st, 2021
- Scientists Have Simulated The Primordial Quantum Structure of Our Universe - ScienceAlert - March 31st, 2021
- Post-Doctoral Research Associate Experimental Condensed Matter Physics job with ROYAL HOLLOWAY, UNIVERSITY OF LONDON | 250229 - Times Higher Education... - March 31st, 2021
- No free will, no ideas: Physicist Brian Greene reduces everything to 'particles and fields' - National Catholic Reporter - March 31st, 2021
- Carlo Rovelli on his search for the theory of everything - Prospect - March 31st, 2021
- Do Alternate Realities Exist? This Artist's Machines Are Ready to Find Out - PCMag - March 31st, 2021
- After 50 Years, Physicists Confirm The Existence of an Elusive Quasiparticle - ScienceAlert - March 25th, 2021
- Helgoland by Carlo Rovelli review the mysteries of quantum mechanics - The Guardian - March 25th, 2021
- Quantum Week 2021 Unveils the Latest in Quantum Computing and Engineering - PRNewswire - March 25th, 2021
- QMAP Will Have Data Science and AI as Downstairs Neighbors - UC Davis - March 25th, 2021
- Has the black hole information paradox evaporated? - Symmetry magazine - March 25th, 2021
- Ultracold Quantum Collisions Have Been Achieved in Space for the First Time - Scientific American - March 25th, 2021
- Measuring the invisible - MIT News - March 25th, 2021