Is the 2-qubit singlet state invariant under bilateral projections?
Dec 23, 2025 · SUMMARY The 2-qubit singlet state | Ψ = 1 2 (| 01 | 10 ) is invariant under bilateral rotations represented by operators of the form U ⊗ U, where U is a unitary operator. However, when …
Schrödinger's Cat and the Qbit - Physics Forums
Apr 2, 2024 · If, on the other hand, the cat is truly in a superposition of “alive” and “dead”, then we have a quantum bit of information (qubit or Qbit). Let explain the difference between a Cbit and a Qbit and …
Quantum computer storage capacity - Physics Forums
Aug 10, 2022 · A qubit can only store one binary bit, or on the odd occasion, two entangled bits. 32 qubits can store 2^32 different possible patterns, but only 32 bits can be read at one time.
How Does a Qubit Exist as Both 1 and 0 Simultaneously?
Feb 11, 2024 · A qubit exists in a state of quantum superposition, allowing it to represent both 1 and 0 simultaneously until it is measured. This phenomenon is not merely an analogy but a fundamental …
Does a qubit break interference in the double slit experiment?
Sep 7, 2025 · The qubit is a quantum object, so if the particle was in a superposition of up and down, the qubit can be in a superposition too. Measuring the qubit in an orthogonal direction might preserve the …
Sending drive Pulse in CQED and visualize the state by QuTip
Jan 16, 2023 · In the dispersive regime, the qubit acts like a dielectric whose dielectric constant depends on the state of the qubit. This causes the cavity frequency to depend on the state of the qubit. When …
Quantum Physics Forum • Physics Forums
Apr 18, 2020 · Join in expert discussion on quantum physics. Quantum physics is the mathematical description of the motion and interaction of subatomic particles. Quantum Mechanics and Field Theory.
Finding E_J Value of a Qubit: Step-by-Step Guide - Physics Forums
Mar 6, 2019 · The transition frequency of the qubit is approximated by the formula √ (8E_C E_J) - E_C, with a request for more precise theoretical expressions. Understanding of superconducting qubits, …
Information content of a qubit - Physics Forums
Nov 22, 2020 · I have just started reading Neilson and chuang's book on quantum computing and two times already have they said that when a qubit is not observed, it can contain infinite information. …
Two qubit state multiplication - Physics Forums
Apr 15, 2013 · This discussion focuses on the multiplication of two-qubit states using bra-ket notation in quantum mechanics. Participants explore the computation of outer products for all combinations of …