Timeline - Michael Crichton [52]
David Stern spoke for the first time. “Particles aren’t as simple as the way you have described them. Particles have some wavelike properties, depending on the situation. Particles can interfere with one another. In this case, the photons in the beam of light are interfering with one another to produce the same pattern.”
“That does seem logical,” Gordon said. “After all, a beam of light is zillions and zillions of little photons. It’s not hard to imagine that they would interact with one another in some fashion, and produce the interference pattern.”
They were all nodding. Yes, not hard to imagine.
“But is it really true?” Gordon said. “Is that what’s going on? One way to find out is to eliminate any interaction among the photons. Let’s just deal with one photon at a time. This has been done experimentally. You make a beam of light so weak that only one photon comes out at a time. And you can put very sensitive detectors behind the slits—so sensitive, they can register a single photon hitting them. Okay?”
They nodded, more slowly this time.
“Now, there can’t be any interference from other photons, because we are dealing with a single photon only. So: the photons come through, one at a time. The detectors record where the photons land. And after a few hours, we get a result, something like this.”
“What we see,” Gordon said, “is that the individual photons land only in certain places, and never others. They behave exactly the same as they do in a regular beam of light. But they are coming in one at a time. There are no other photons to interfere with them. Yet something is interfering with them, because they are making the usual interference pattern. So: What is interfering with a single photon?”
Silence.
“Mr. Stern?”
Stern shook his head. “If you calculate the probabilities—”
“Let’s not escape into mathematics. Let’s stay with reality. After all, this experiment has been performed—with real photons, striking real detectors. And something real interferes with them. The question is, What is it?”
“It has to be other photons,” Stern said.
“Yes,” Gordon said, “but where are they? We have detectors, and we don’t detect any other photons. So where are the interfering photons?”
Stern sighed. “Okay,” he said. He threw up his hands.
Chris said, “What do you mean, Okay? Okay what?”
Gordon nodded to Stern. “Tell them.”
“What he is saying is that single-photon interference proves that reality is much greater than just what we see in our universe. The interference is happening, but we can’t see any cause for it in our universe. Therefore, the interfering photons must be in other universes. And that proves that the other universes exist.”
“Correct,” Gordon said. “And they sometimes interact with our own universe.”
:
“I’m sorry,” Marek said. “Would you do that again? Why is some other universe interfering with our universe?”
“It’s the nature of the multiverse,” Gordon said. “Remember, within the multiverse, the universes are constantly splitting, which means that many other universes are very similar to ours. And it is the similar ones that interact. Each time we make a beam of light in our universe, beams of light are simultaneously made in many similar universes, and the photons from those other universes interfere with the photons in our universe and produce the pattern that we see.”
“And you are telling us this is true?”
“Absolutely true. The experiment has been done many times.”
Marek frowned. Kate stared at the table. Chris scratched his head.
Finally David Stern said, “Not all the universes are similar to ours?”
“No.”
“Are they all simultaneous to ours?”
“Not all, no.”
“Therefore some universes exist at an earlier time?”
“Yes. Actually, since they are infinite in number, the universes exist at all earlier times.”
Stern thought for a moment. “And you are telling us that ITC has the technology to travel to these other universes.”
“Yes,” Gordon said. “That’s what I’m telling you.”
“How?”
“We make wormhole connections in quantum foam.”
“You mean Wheeler foam? Subatomic fluctuations