Challenges and opportunities for quantum information hardware

Area of Science:

• Quantum information science and technology.

Background:

• Quantum technologies have progressed significantly in the last decade.
• Areas like quantum sensing and key distribution are transitioning to practical applications.
• Quantum computing, entanglement-enhanced sensing, and a global quantum internet are nascent, akin to the early transistor age.

Purpose of the Study:

• To review the current state of quantum information hardware.
• To identify key challenges and opportunities in the field.
• To draw parallels with classical electronics and photonics development for future progress.

Main Methods:

• Review of the current state of quantum information hardware.
• Analysis of challenges and opportunities.
• Historical comparison with classical electronics and photonics scaling.

Main Results:

• Quantum sensing and key distribution are nearing real-world application.
• Quantum computing and related fields require substantial hardware advancements.
• Progress in quantum information hardware is compared to early classical electronics.

Conclusions:

• Significant hardware breakthroughs are needed for advanced quantum technologies like quantum computing.
• The development trajectory of quantum information hardware may mirror that of classical electronics and photonics.
• The field is poised for growth, with identified challenges and opportunities guiding future research.