
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
Theoretical physicist exploring emergent phenomena in quantum many-body systems.

I am a PhD candidate in the Physics Department at Boston University. My research focuses on understanding the emergent phenomena that arise when quantum mechanics meets complex many-body systems.
My work sits at the intersection of quantum spin liquids, topological phases of matter, and exotic electromagnetic responses. I focus on how these ideas can be detected experimentally, especially how emergent photons appear 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 and driven topological systems.
Investigating emergent U(1) gauge theory in pyrochlore materials and their detection through stray-field magnetometry.
Understanding 𝜃-terms and it's corresponding magnetoelectric response 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

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I am always happy to discuss research, potential collaborations, or postdoctoral opportunities. Feel free to reach out.