The University of Texas at Austin is expanding its quantum research infrastructure with a new underground facility within Welch Hall, the institution\u2019s largest academic building, following the opening of the Love, Tito\u2019s Quantum Materials Characterization Lab. This investment builds on decades of quantum discoveries at UT, dating back to the 1970s, and reflects the growing importance of harnessing the behavior of atoms and electrons for advanced technologies. Understanding quantum mechanics previously allowed researchers to anticipate electron behavior in silicon, which in turn enabled the development of semiconductors and all the computing devices that use them. \u201cQuantum science plays a leading role in your everyday experiences in the modern world,\u201d highlighting the pervasive impact of this field, from MRIs to GPS, and the potential for further advances in computing, medical science, and clean energy.<\/p>\n
Wheeler\u2019s Legacy: Quantum Demolition and Early Computing<\/p>\n
The foundations of modern quantum computing were unexpectedly laid through a process of deliberate disruption. Physicist John A. Wheeler, during his tenure at The University of Texas at Austin, formalized the concept of measurement in quantum mechanics. Wheeler described how this type of measurement provides data about a system but inevitably alters the quantum state being observed, a principle that profoundly shaped subsequent research. Wheeler did not work in isolation; the group of graduate and postdoctoral students he mentored also contributed significantly to the burgeoning field, most notably David Deutsch, later recognized as the \u201cfather of quantum computing\u201d for his mathematical principles outlining a universal quantum<\/a> computer. The term \u201cqubits<\/a>,\u201d used to describe quantum computing units of information, was coined at UT Austin by Benjamin Schumacher. This historical connection underscores the practical implications of seemingly abstract quantum investigations. This commitment to quantum research extends beyond computation.<\/p>\n Physicist Allan MacDonald, the Sid W. Richardson Foundation Regents Chair in Physics #1 at UT, made a significant discovery fifteen years ago involving graphene<\/a>, a single-layer carbon atom material. MacDonald and postdoctoral researcher Rafi Bistritzer published findings detailing the unusual behavior of electrons when two sheets of graphene are stacked with a slight rotational offset, a phenomenon now known as twistronics<\/a>. Their simulations, conducted using supercomputers at UT\u2019s Texas Advanced Computing Center, revealed that at a precise 1.1-degree twist, electrons slow dramatically, spawning the field of twistronics. \u201cThis greater control of twist angles offers a new and powerful way of changing the properties of electrons inside two-dimensional materials and the interaction of those properties with light,\u201d MacDonald said, suggesting potential advancements in fiber-optic data transfers and quantum computing. The implications of this work are substantial, as evidenced by MacDonald sharing the Wolf Prize in Physics and the Frontiers of Knowledge Award for his twistronics research, demonstrating the enduring influence of Wheeler\u2019s initial insights and the continued momentum of quantum science at UT Austin.<\/p>\n Schumacher worked out more than just a clever name [qubit]; he proved a theorem about how qubits could be used to quantify the quantum information sent through a communication channel.<\/p>\n Science News<\/p>\n MacDonald\u2019s Twistronics Discovery and \u201cMagic Angle\u201d Graphene<\/p>\n The field of twistronics continues to reshape materials science, building upon decades of quantum mechanical foundations and now benefiting from dedicated, expanding research infrastructure at institutions like the University of Texas at Austin. While the principles governing electron behavior in materials like silicon have long been understood and exploited in semiconductor technology, recent discoveries reveal that manipulating the arrangement of two-dimensional materials offers a new dimension of control. This is particularly evident in the work surrounding graphene, a single-layer sheet of carbon atoms, and the surprising phenomena unlocked by precisely controlling its orientation when layered with another sheet. Theoretical physicist Allan MacDonald, the Sid W. Richardson Foundation Regents Chair in Physics #1 at UT, conducted simulations that revealed a critical finding: \u201cat a precise 1.1-degree twist, electrons slow dramatically and behave in unusual ways,\u201d a discovery that subsequently launched the field of twistronics.<\/p>\n This wasn\u2019t merely an academic curiosity; in 2019, researchers at the Massachusetts Institute of Technology confirmed that graphene arranged at MacDonald\u2019s \u201cmagic angle\u201d could exhibit superconductivity at temperatures significantly lower than those required for conventional superconductors. This research extends beyond simply identifying a specific angle, offering the potential to revolutionize fiber-optic data transfers and accelerate progress in quantum computing.<\/p>\n Metrology has been identified by the U.S. Department of Commerce as the key enabling technology for the semiconductor industry.<\/p>\n Defining Quantum Supremacy with Aaronson\u2019s Theoretical Work<\/p>\n