Room Temperature Macroscopic Quantum Phenomena in Hybrid Perovskites

As the demand for quantum approaches in computing, communication, and cryptology is<br/>increasing, the need for discovering new “quantum materials” is at an unprecedented level. While for most applications, the required quantum properties are known, the designer rules for producing these materials are not clear and quantum materials functioning at room temperature are almost non-existent. Quantum coherence, i.e., the phase stability of a superposition state, is the fundamental requirement for quantum applications. For instance, a key requirement for quantum computing is long dephasing times. In fact, coherence is the most important requirement for observing quantum phenomena. Symmetry breaking processes that lead to superconductivity, superfluorescence, and Bose-Einstein condensation all require a macroscopically coherent ensemble. Therefore, these phenomena are only observed in cryogenic conditions. In this talk we will address a major challenge in quantum science: Are thermal dephasing processes a roadblock for room temperature quantum technologies?<br/>We will present experimental results on room temperature macroscopic quantum phenomena, superfluorescence in hybrid perovskites. Observation of room temperature superfluorescence in hybrid perovskites suggests that there is an intrinsic mechanism that sustains electronic quantum coherence. After explaining the mechanism, we will discuss its implications for emerging quantum science and technology.