Massachusetts Institute of Technology (20240338583). Quantum Computing Architecture based on Entangled Fermions simplified abstract

Quantum Computing Architecture based on Entangled Fermions

Organization Name

Massachusetts Institute of Technology

Inventor(s)

Martin Zwierlein of Belmont MA (US)

Thomas Richard Hartke of Cambridge MA (US)

Ningyuan Jia of Cambridge MA (US)

Botond Oreg of Cambridge MA (US)

Quantum Computing Architecture based on Entangled Fermions - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240338583 titled 'Quantum Computing Architecture based on Entangled Fermions

The abstract discusses a quantum register made up of fermionic atom pairs trapped in an optical lattice, forming qubits with near-degenerate wavefunctions.

• Hundreds of fermionic atom pairs are trapped in an optical lattice to create a robust quantum register.
• Each fermion pair forms a spin-singlet, resulting in qubits with symmetry-protected two-particle wavefunctions.
• The degeneracy of the qubits is lifted by atomic recoil energy, making them insensitive to noise in the confining potential.
• Quantum coherence can last longer than ten seconds, with universal control provided by modulating interactions between atoms.
• Through coherent conversion of free atom pairs into bound molecules, the speed of motional entanglement can be tuned over three orders of magnitude.

1. 1. 1. Potential Applications

This technology could be used in quantum computing, quantum communication, and quantum cryptography.

1. 1. 1. Problems Solved

This innovation addresses the challenge of maintaining quantum coherence in large-scale quantum systems and provides a method for universal control of qubits.

1. 1. 1. Benefits

The technology offers long quantum coherence times, robust qubits, and the ability to control interactions between atoms for various applications in quantum technologies.

1. 1. 1. Commercial Applications

Title: Quantum Computing Advancement: Harnessing Fermionic Atom Pairs for Robust Qubits This technology could revolutionize the field of quantum computing, enabling faster and more efficient quantum algorithms, secure communication networks, and advanced simulations for scientific research.

1. 1. 1. Questions about Quantum Register with Fermionic Atom Pairs
         1. 1. How does the use of fermionic atom pairs in a quantum register improve quantum computing capabilities?

The use of fermionic atom pairs in a quantum register enhances quantum computing capabilities by providing robust qubits with long coherence times and universal control over interactions.

1. 1. 1. 1. 2. What potential applications can benefit the most from the quantum register composed of fermionic atom pairs?

The quantum register composed of fermionic atom pairs has applications in quantum computing, quantum communication, and quantum cryptography, offering advancements in secure data processing and communication technologies.

Original Abstract Submitted

fermions are the building blocks of matter. here, we disclose a robust quantum register composed of hundreds of fermionic atom pairs trapped in an optical lattice. with each fermion pair forming a spin-singlet, the qubit is realized as a set of near-degenerate, symmetry-protected two-particle wavefunctions describing common and relative motion. degeneracy is lifted by the atomic recoil energy, which depends on mass and lattice wavelength, thereby rendering two-fermion motional qubits insensitive to noise of the confining potential. the quantum coherence can last longer than ten seconds. universal control is provided by modulating interactions between the atoms. via state-dependent, coherent conversion of free atom pairs into tightly bound molecules, we tune the speed of motional entanglement over three orders of magnitude, yielding 10ramsey oscillations within the coherence time. for site-resolved motional state readout, pairs are coherently split into their constituent fermions via a double-well, creating entangled bell pairs.