| Description: | [DPS Colloquium] Prof. Nandini Trivedi (Ohio State University, USA) -- Quantum Spin Liquids: A New State of Matter with Fractionalized Excitations |
| Date: | Friday, Apr 19, 2024 |
| Time: | 2:30 p.m. - 4 p.m. |
| Venue: | Meghnad Saha Lecture Theatre |
| Details: | The 2022 Nobel prize celebrates the detection of entanglement between two photons. Quantum spin liquids (QSLs) are long-range entangled states of matter of billions of interacting qubits or spins. The fate of the interacting spins can progress along two paths as the temperature is lowered: the spins can undergo long range ordering, spontaneously breaking the continuous symmetries, leading to a magnetic phase; or the spins can remain disordered but get quantum mechanically entangled with long range patterns of many-body entanglement in the resultant QSL. Remarkably QSLs harbor fractionalized excitations rather than the conventional spin waves of ordered magnets that carry integer units of angular momentum. In my talk I will identify detectable signatures of these fractionalized excitations in experiments using light and neutrons. These fractionalized excitations are promising candidates to create logical qubits for quantum computation. |
| Calendar: | Seminar Calendar (entered by rajni) |