As Star Wars: The Last Jedi opens in theatres and its heroine Rey seeks to learn the ways of the Force from an aged and isolated Luke Skywalker, it raises some obvious and ongoing questions:
Is there anything in science — particularly in quantum physics — that resembles the Force? Can objects be manipulated instantaneously from a distance?
Answers, modern physics might have.
Star Wars: The Last Jedi, practices her skills in the Force, in this preview film trailer. (Lucasfilm)
These aren’t the forces that you are looking for
Obi-Wan Kenobi told Luke Skywalker in the original Star Wars film that the Force “surrounds us and penetrates us; it binds the galaxy together.”
Modern physicists know that there are actually four fundamental forces: the two nuclear forces, the electromagnetic force and the gravitational force. All of these play a role in binding matter together, from the tiniest of atoms to the largest of planets.
However, these are probably not the forces we are looking for. Old Ben Kenobi, Yoda, and, eventually, Luke, could communicate telepathically over large distances and move objects with their minds.
Are these feats possible? What do the laws of physics say about this?
Ben Kenobi (Alec Guinness) explains the Force to Luke Skywalker (Mark Hamill) in Star Wars. (Lucasfilm via YouTube)
So, if you needed to send a message to Alderaan to warn the citizens of an Imperial attack, there would always be a delay. Even if you wanted to, you couldn’t warn them in time to evacuate because it takes time for light to travel to transmit the message.
Ben Kenobi couldn’t possibly have felt a disturbance in the Force only a few instants after the Death Star destroyed Alderaan. Or could he?
Ben Kenobi feels a great disturbance in the Force. Can information be transmitted instantly? (Lucasfilm via YouTube)
However, through a trick of quantum mechanics, you can link two particles in a special way, separate them, and then observe the effects of one upon the other over large distances. This is known as quantum entanglement — placing two objects in the same entangled quantum state. And it is weirder than anything that Star Wars creator George Lucas could come up with (Jar Jar Binks excluded, of course).
In fact, George Lucas was influenced by quantum theory when he was writing the original script for Star Wars. In the late 1960s and early 1970s, New Age thinkers proposed that quantum entanglement is a “force” that really does bind us all together.
Physicist Michio Kaku describes a quantum-entangled state of matter — a superconductor — and the Meissner effect that leads to magnetic levitation. (BBC via YouTube)
From a certain point of view
So, there is some truth in the idea behind “The Force,” from a certain point of view, as Ben Kenobi would say.
Quantum entanglement plays a role in modern physics and it is a binding principle for matter and energy. However, quantum entanglement on a large scale is difficult to achieve, and even more difficult to observe in living creatures.
What about the Force as “an energy field created by all living things?”
Physicists are only just now studying the effects of quantum entanglement in biology, in a relatively new field called “quantum biology.”