Quantum computing and quantum information storage

Journal Article · Thu Mar 11 00:00:00 EST 2021 · Physical Chemistry Chemical Physics. PCCP

DOI:https://doi.org/10.1039/d1cp90024b· OSTI ID:1777846

Krylov, Anna I. ^[1]; Doyle, John ^[2]; Ni, Kang-Kuen ^[2]

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1. Univ. of Southern California, Los Angeles, CA (United States); University of Southern California
2. Harvard Univ., Cambridge, MA (United States)

Quantum storage, transmission, and processing is the future of information technology. Here, the promise of quantum hardware stems from the inherent complexity of an entangled quantum system—the size of the wave-function scales exponentially with the number of particles, whether represented in real space or in a parameter space. In contrast, a classical N-body system can be completely represented by only 6N variables (positions and momenta of all particles). This complexity of quantum systems creates a yet-unsolved challenge of modeling quantum systems by means of classical computing—the curse of dimensionality. Indeed, although we can easily write the Schrödinger equation for any system of interacting nuclei and electrons, we can only solve it exactly on classical computers for very small systems.

• Research Organization: Univ. of Southern California, Los Angeles, CA (United States)
• Sponsoring Organization: National Science Foundation; USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
• Grant/Contract Number: SC0019245; SC0019432
• OSTI ID: 1777846
• Alternate ID(s): OSTI ID: 1770481
• Journal Information: Physical Chemistry Chemical Physics. PCCP, Journal Name: Physical Chemistry Chemical Physics. PCCP Journal Issue: 11 Vol. 23; ISSN 1463-9076
• Publisher: Royal Society of Chemistry
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
algorithms
editorial
quantum computing
quantum information storage