I like Serena said:I think that is because we're still having great difficulty modelling even 1 regular bit in a qubit...
r.p.f. said:
A qubit state is not the space but a vector of that space. So you can model a universe with only one classical particle with it.
A qubit, also known as a quantum bit, is a unit of quantum information that is the basic building block of quantum computing. It can represent both 0 and 1 at the same time, unlike classical bits which can only be either 0 or 1.
One qubit is not enough to model the entire universe. However, it can be used to simulate and study certain quantum systems, such as atoms or molecules, which can provide insights into the behavior of the universe at a fundamental level.
Qubits have the unique property of superposition, meaning they can exist in multiple states at once. This allows for more complex calculations and simulations to be performed, making quantum computing much more powerful than classical computing.
A qubit can be physically represented by any two-state quantum system, such as the spin of an electron or the polarization of a photon. In quantum computing, qubits are typically represented by a two-level quantum system, such as a spin-up and spin-down electron.
Using qubits to model the universe has potential applications in fields such as quantum chemistry, material science, and cosmology. It could also help us gain a better understanding of the fundamental laws of nature and potentially lead to advancements in technology, such as more efficient energy production and communication systems.