In a groundbreaking achievement, IBM researchers successfully created Schrödinger’s cat in one of their quantum computers, demonstrating the power of quantum computing and its potential to revolutionize various fields.
The Origins of Schrödinger’s Cat
Schrödinger called his metaphorical cat ‘quite ridiculous,’ but the quantum weirdness it represents has become a useful benchmark for the quantum computing industry.
In 1935, Austrian physicist Erwin Schrödinger created a thought-provoking paradox to illustrate the seemingly absurd consequences of applying quantum mechanics to everyday objects. His famous thought experiment, known as Schrödinger’s cat, proposes that if a subatomic particle can exist in multiple states simultaneously (a property of quantum superposition), then it’s possible for a macroscopic object like a cat to be in multiple states at the same time.
Schrödinger's cat is a thought experiment devised by Austrian physicist Erwin Schrödinger in 1935.
It illustrates the paradoxical nature of quantum mechanics, where a particle can exist in multiple states simultaneously.
The scenario involves a sealed box containing a cat, a radioactive atom, and a poison that will kill the cat if the atom decays.
According to quantum theory, the atom is in a superposition state until observed, meaning both decayed and intact at the same time.
This thought-provoking example highlights the strange implications of applying quantum principles to macroscopic objects.
Erwin Schrödinger was an Austrian physicist who made significant contributions to quantum mechanics.
Born in 1887, he studied physics at the University of Vienna and later worked with Max Planck.
Schrödinger is best known for his thought experiment, 'Schrödinger's cat,' which illustrates the concept of superposition in quantum mechanics.
He was awarded the Nobel Prize in Physics in 1933 for his work on wave mechanics.
From Humor to Scientific Significance

Schrödinger himself described the thought experiment as ‘quite ridiculous,’ but it has since become an iconic representation of the strange implications of quantum mechanics. While the original intention was to highlight the absurdity of applying quantum principles to macroscopic objects, Schrödinger’s cat has taken on a more profound significance in the development of quantum computing.
From Humor to Scientific Significance
The concept of superposition, which underlies Schrödinger’s cat, is still a fundamental aspect of quantum mechanics. It refers to the ability of certain particles to exist in multiple states (e.g., spin up and down) simultaneously. This property has significant implications for the development of quantum computing, as it enables the creation of complex quantum states that can be used to perform calculations beyond the capabilities of classical computers.
Quantum Computing and Schrödinger’s Cat
The IBM researchers I met with had successfully created a Schrödinger’s cat in one of their quantum computers. This achievement demonstrated the power of quantum computing, which relies on manipulating superposition and entanglement to perform calculations. The creation of such complex quantum states has significant implications for various fields, including cryptography, optimization problems, and simulation of complex systems.
A Benchmark for Quantum Computing
The Schrödinger’s cat thought experiment has become a benchmark for the quantum computing industry. It serves as a reminder of the strange and counterintuitive nature of quantum mechanics, which is still being explored and harnessed to develop new technologies. As researchers continue to push the boundaries of quantum computing, Schrödinger’s cat remains an enduring symbol of the fascinating and often bizarre world of quantum physics.
- newscientist.com | Where Schrödinger’s cat came from – and why it’s getting fatter