Xinyue Zhang
Kennesaw State University, GA·Physics
Quantum technologies for computing, communication and sensing depend on fragile quantum states that are quickly degraded by decoherence, the leakage of quantum information into the surroundings. Most efforts try to suppress the gain and loss of energy that cause this.
- Fields
Physics
Engineering
- Topics
quantum information science
non-Hermitian physics
anti-Hermiticity
- Grants
- 1 known grant, through Sep 2027
What they work on
- Develop a testbed that links quantum-correlated twin beams of light with phase-sensitive amplification to study quadrature parity-time symmetry, a balance between gain and loss, in integrated quantum photonics.
- Build a system of two coupled superconducting qubits with natural energy loss to study passive parity-time symmetry and the phase transitions it causes.
- Track how entanglement and other non-classical correlations change under anti-Hermitian, symmetry-governed conditions, using theory alongside both testbeds.
- Explore whether non-Hermitian phase transitions in these photonic and qubit systems can enable supersensitive quantum sensing.
More about the research
This project takes a different route. It draws on non-Hermitian physics, the physics of open systems that gain or lose energy, to ask whether carefully engineered gain, loss and symmetry can instead preserve or even strengthen quantum correlations and entanglement.
Why it matters
Decoherence limits the reliability of quantum computers, communication links and sensors. By showing how engineered gain, loss and symmetry can protect quantum entanglement, this work could help quantum photonic and superconducting devices resist errors. It could also make possible supersensitive quantum sensors for precision measurement.
Known grants
From NIH and NSF research grants. Labs often have other funding we can't see.
Closest labs
Angela Kou
University of Illinois Urbana-Champaign, IL·Physics·Early-career
Locate the origin of local, unpredictable defects in superconducting transmon qubits using a scanning microwave resonator probe that measures time-resolved qubit behavior.
Yizhi You
Northeastern University, MA·Physics·Early-career
Construct microscopic models and hybrid fracton field theories to describe the collective behavior of fractons, particle-like excitations with restricted mobility, and the phases and phase transitions they form.
Igor Klebanov
Princeton University, NJ·Physics
Develop new methods for quantum field theories with defects or boundaries, where interactions are confined to a surface or edge, and identify the new critical phenomena and renormalization group flows they produce.
The school
Kennesaw State University: 6 labs on PI Pages, $52M a year on research, 82 research doctorates a year.
Reach out
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