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- NEC's R&D
- R & D Domains
- Global R & D
- Press Release
- Innovative Engine
- Speech Recognition
- Quality degradation analysis for large-scale networks
- Bioplastics for Electronic Equipment
- Quantum Computer
- What quantum computers can do for us
- What does "quantum" mean?
- Basic principles of quantum computers and differences with existing computers
- Beginnings of quantum computer research
- Qubit solid-state device: 1-bit operation
- Quantum computer operation mechanism
- Qubit solid-state device: Demonstration of a C-NOT circuit
- Demonstration of Coupling-controlled Qubits and Future Outlook
- About Dr. Tsai & Mr. Nakamura
- Carbon Nanotube
- Awards
- Access
Quantum Computer
To find the prime factors of a 300-digit number, even a supercomputer would need about 10 million years. For a quantum computer, this task would take only several tens of seconds.
In October of 2003, NEC and RIKEN (Institute of Physical and Chemical Research) announced their demonstration of a basic circuit making up a quantum computer in the British scientific journal Nature (October 30, 2003, Vol. 425: "Demonstration of conditional gate operation using superconducting charge qubits"). --> Press Release, Oct. 30, 2003
In this report, research fellow Jaw-Shen Tsai and research fellow Yasunobu Nakamura of NEC's Green Innovation Research Laboratories describe the potential of quantum computers and the basic principals behind their operation.
- What quantum computers can do for us
- What does "quantum" mean?
- Basic principles of quantum computers and differences with existing computers
- Beginnings of quantum computer research
- Qubit solid-state device: 1-bit operation
- Quantum computer operation mechanism
- Qubit solid-state device: Demonstration of a C-NOT circuit
- Demonstration of Coupling-controlled Qubits and Future Outlook
