Experimental Method for Manipulation of the State of Multi-Phi-Bit Systems

Case ID:

This invention is a method to experimentally navigate the Hilbert space of two logical phi-bits. A “phi-bit,” is a two-state degree of freedom of an acoustic wave (an acoustic spin), which can be in a coherent superposition of states with complex amplitude coefficients. Phi-bits are therefore analogues of qubits. The inventors have developed a simple model of the nonlinear array of externally driven coupled acoustic waveguides to shed light on possible mechanisms for the experimentally observed behavior of the logical phi-bit phase. Lastly, the inventors illustrate the ability to experimentally initialize the state of single and multiple phi-bit systems by exploiting the drivers’ phase as a tuning parameter. It is also shown that nonlinear correlation between phi-bits enables parallelism in the manipulation of two and multi phi-bit superpositions of states.

Quantum computing is a growing field due to the potential for quantum computers to solve complex computations substantially faster than a regular computer. The field is also increasingly relevant as it shifts towards real world use due to applications in the pharmaceutical industry and around data security, among other uses. A major hurdle in the use of quantum computing is the expensive requirements of use. Along with physical obstacles such as the high temperature quantum computers run at, they are often not scalable due to physical limitations which do not allow for an increase of qubits.

However, with the recent advancements in phi-bits, a new pathway towards scalable quantum computing has been illuminated. The phi-bits, as analogues of qubits, possess the potential to overcome the current limitations faced by conventional quantum computing, thereby promising a more accessible and efficient way of performing complex computations. This experimental method for manipulating the state of multi-phi-bit systems may become a key innovation that propels the field of quantum computing forward.


  • Quantum computing
  • Entanglement
  • Quantum-like computing


  • Predictable
  • Unambiguously measurable
  • Scalable
Patent Information:
Contact For More Information:
Tariq Ahmed
Sr Licensing Manager, College of Engineering
The University of Arizona
Lead Inventor(s):
Pierre Deymier
Keith Runge
Md Arif Hasan