No, that statement is not entirely accurate. While creating individual qubits electronically is indeed a significant challenge, entangling them on the scale necessary for quantum computing is an ongoing area of research and progress is being made.
Qubits are the fundamental units of information in quantum computing, and they can be realized using a variety of physical systems, such as superconducting circuits, trapped ions, or semiconductor quantum dots. Creating and manipulating individual qubits is a demanding task, as qubits are highly sensitive to their environment and can be easily disturbed by noise and decoherence.
Entangling qubits, which is a crucial operation for quantum computing, involves creating strong correlations between the quantum states of multiple qubits. It allows for the representation of complex quantum states and enables the parallel processing that gives quantum computers their computational advantage.
While entangling a large number of qubits is indeed challenging, progress has been made in this area. Researchers have successfully demonstrated entanglement of multiple qubits using various platforms. For example, in 2019, Google announced achieving quantum supremacy by entangling 53 superconducting qubits. Other research groups have reported entangling tens of qubits using trapped ions, neutral atoms, and other systems.
However, it's important to note that scaling up the number of qubits while maintaining the necessary control and coherence remains a significant technical hurdle. Achieving fault-tolerant quantum computing with error correction, where qubits can be reliably entangled and manipulated, is an active area of research and engineering.
In summary, while creating and entangling qubits on a large scale is still a challenge, significant progress has been made in the field of quantum computing, and researchers are actively working on overcoming these obstacles to build practical and powerful quantum computers.