Physicists have experimentally demonstrated 18-qubit entanglement, which is the largest entangled state achieved so far with individual control of each qubit. As each qubit has two …

Quantum entanglement is the phenomenon wherein the quantum state of each particle in a group cannot be described independently of the state of the others, even when the particles are …

3 days ago · Qubits break long-held quantum limit by evolving in superposed time paths A simple three-qubit setup shows how superposed control can surprisingly strengthen quantum …

In this paper, we wish to assess the quantumness and performance of the 16-qubit ibmqx5 device via the production of highly entangled states, namely the graph states, which is an important...

5 days ago · Controlling qubits with quantum superpositions allows them to dramatically violate a fundamental limit and encode information for about five times longer during ...

In such systems, the largest number of qubits entangled to date is 14, achieved in a trapped-ion system [13], followed by 10 entangled superconducting qubits [14], and 10 entangled photonic …

More recently, as many as 27 qubits have been entangled in quantum computers. Now, Xiao-bo Zhu at the University of Science and Technology of China and his colleagues have pushed …

Once measured, the states of the entangled qubits are fixed, and repeated measurements yield consistent results. In this demonstration, we will explore entanglement using IBM Quantum …

We prepared a graph state along a path consisting of all twenty qubits within the device and performed full quantum state tomography on all groups of four connected qubits along this …

We detect full entanglement up to 16 qubits, using an entanglement criterion based on reduced density matrices. Qubits are fully entangled in the sense that the state involves all physical …