Hearing the Light: Stray-Field Noise from the Emergent Photon in Quantum Spin Ice
J. N. Hallén, N. C. Jayarama, G. Naik, R. Moessner, C. R. Laumann
arXiv:2512.14843
PhD Candidate
Theoretical physicist exploring emergent phenomena in quantum many-body systems.

I am a PhD candidate in the Physics Department at Boston University, working under the supervision of Prof. Chris R. Laumann. My research focuses on understanding the emergent phenomena that arise when quantum mechanics meets complex many-body systems.
My work lies at the intersection of quantum spin liquids, topological phases of matter, and exotic electromagnetic responses. I am particularly interested in how artificial light—emergent photons—can exist within frustrated magnetic materials like quantum spin ice.
I am actively seeking postdoctoral positions in theoretical condensed matter physics, with particular interest in groups working on quantum spin liquids, topological phases, and emergent gauge theories.
Investigating emergent photons in pyrochlore materials and their detection through stray-field magnetometry.
Understanding magnetoelectric responses in bosonic insulators and the role of topology in quantum matter.
Exploring periodically driven quantum systems, phase transitions, and entanglement generation.
J. N. Hallén, N. C. Jayarama, G. Naik, R. Moessner, C. R. Laumann
arXiv:2512.14843
J. N. Hallén, G. Naik, C. R. Laumann
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I am always happy to discuss research, potential collaborations, or postdoctoral opportunities. Feel free to reach out.