A new quantum computing system developed by NIST enables optimal state transfer and entanglement generation in power-law interacting systems. The system consists of a quantum processor, memory, and a quantum system with multiple qubits.
The process begins with encoding unknown coefficients in one qubit and initializing the remaining qubits in the |0 state. This ensures a consistent starting point for subsequent operations. The qubits are then grouped into subsystems, and quantum information is encoded into Greenberger-Horne-Zeilinger-like (GHZ-like) states using nearest-neighbor interactions.
To merge the GHZ-like states into an entangled state between the subsystems, a generalized controlled-phase gate is applied. This gate operation creates an entangled state, which is a fundamental resource for quantum information processing and quantum computing applications.
The system’s ability to generate entangled states and transfer quantum information efficiently could lead to advancements in quantum technologies, such as quantum communication, quantum sensing, and quantum computing.
Keywords: quantum state, quantum information, entanglement, quantum system, qubits
