Optical quantum memory with processing capabilities
Abstract: Optical quantum memories can be used for storage or generation and subsequent retrieval of quantum light for the purpose of long-distance quantum communication. However, it is beneficial to consider more functions of quantum memories, which may then become parts of more complex hybrid quantum networks. In my works I have demonstrated protocols for spin-wave processing based on interference in multiplexed optical quantum memories [1,2].
Hidden time-reversal symmetry, quantum detailed balance, and exactly-solvable driven-dissipative quantum systems
Abstract: "In this talk, we discuss a new kind of symmetry that underlies a wide class of driven-dissipative quantum systems, a *hidden time-reversal symmetry*. This symmetry represents a generalization of the notion of “detailed balance” that is fully applicable to truly quantum systems. The introduction of this symmetry resolves the problem of how to usefully define “detailed balance” in a quantum setting (a problem that has been studied since the early 70’s by AMO physicists).
Photon-photon interactions in a nonlinear photonic circuit
Abstract: Interaction between individual photons forms the foundation of gate-based optical quantum computing among other quantum-enabled technologies. Quantum emitter-mediated photon interactions are fundamentally constrained by stringent operation conditions and the available photon wavelength and bandwidth, posing difficulty in upscaling and practical applications.
The Quantum Pascal: Realizing the SI-unit for pressure using Fabry-Perot based refractometry
Abstract: Fabry-Perot based refractometry is a powerful technique for pressure assessments that, due to the recent redefinition of the SI system, offers a new route to realizing the SI unit of pressure, the Pascal. In the talk, I will provide a short introduction to pressure metrology and attempt to explain the basics of Fabry-Perot based refractometry and how it can be used to realize the Pascal.
Chemistry, one quantum state at a time -- reaction and spectroscopy with ultracold molecules
Abstract: Over the past decade, advances in atomic, molecular, and optical (AMO) physics techniques enabled the cooling of simple molecules down to the ultracold regime (< 1 mK), allowing unprecedented control over their quantum states. This opened a host of new opportunities in quantum information, precision measurement, and controlled chemistry. I will discuss two experiments on precisely probing and controlling inter- and intramolecular dynamics at ultralow temperatures, respectively.
A Probe of Band Structure Singularities with a Lattice-Trapped Quantum Gas Abstract
Abstract: Ultracold-atom quantum simulators are powerful experimental tools that provide insight into the properties of crystalline solids. Important crystalline solid properties, such as electrical resistivity and optical absorption, are set by the crystal’s energy band structure (bands of the allowable energies of electrons in the potential generated by a lattice arrangement of atomic or molecular ions). However, it is not only the band structure that determines the properties of a crystal.
Integrated Photonic Quantum Information Processing
Abstract: In recent years, photonics has become one of the key contenders in the race to build large-scale quantum computers. The prominence of photonics as a quantum information technology is underscored by the fact that it is one of only a handful of technology platforms which has achieved a quantum advantage, i.e., a large-scale quantum system which outperforms a classical supercomputer at some well-defined computational task [1 2].
Quantum many-body scars, connection to Floquet automata, and ‘broken unitary’ dynamics
Abstract: Quantum Many-Body scars represent a new paradigm of breaking eigenstate thermalization hypothesis—a vanishing number of states in the spectrum exhibit area law entanglement while being dispersed at equally spaced energies throughout a spectrum of volume-law entangled states. This is in stark contrast to many-body localization, where all eigenstates are area-law entangled, or a thermalizing system, where states are volume law entangled. Despite the fact that very few states exhibit such low entanglement, they have a remarkable effect on the dynamics of the system.
Analog Quantum Simulation of Topological Lattice Models with a Parametric Cavity
Abstract: There has been a growing interest in realizing quantum simulators for physical systems where perturbative methods are ineffective. The scalability and flexibility of circuit quantum electrodynamics (cQED) make it a promising platform to implement various types of simulators, including lattice models of strongly-coupled field theories. Here, we use a multimode superconducting parametric cavity as a hardware-efficient analog quantum simulator, realizing a lattice in synthetic dimensions with complex hopping interactions.
Tips for making peer review easy, fruitful, and successfully sharing your research
Abstract: Publishing an article requires not only scientific expertise but also engagement with the broader community, which is aided in many ways by editors. I'll share my perspective on peer review and provide some tips for successfully writing and publishing your next article. I will also show some data about the research from the University of Maryland that is published in the Physical Review journals. Finally, I hope to convince you that PRX Quantum is an excellent venue for publishing your results of interest to quantum science.