6 papers · 1 filter
Achieving the Quantum Limits with Twin-Field Sensors
Yaohua Li, Fan Yang, Klaus Mølmer
Continuous measurements play a fundamental role in quantum experiments, yet understanding and extracting the maximal possible information in a continuous probe signal remains a sig…
Boundary Time Crystals Induced by Local Dissipation and Long-Range Interactions
Zhuqing Wang, Ruochen Gao, Xiaoling Wu +4
Driven-dissipative many-body system supports nontrivial quantum phases absent in equilibrium. As a prominent example, the interplay between coherent driving and collective dissipat…
Chiral Quantum-Optical Elements for Waveguide-QED with Sub-wavelength Rydberg-Atom Arrays
Lida Zhang, Fan Yang, Klaus Mølmer +1
We describe an approach to achieve near-perfect unidirectional light-matter coupling to an effective quantum emitter that is formed by a subwavelength array of atoms in the Rydberg…
Subtraction and Addition of Propagating Photons by Two-Level Emitters
Mads M. Lund, Fan Yang, Victor Rueskov Christiansen +2
Coherent manipulation of quantum states of light is key to photonic quantum information processing. In this Letter, we show that a passive two-level nonlinearity suffices to implem…
Jaynes-Cummings interaction with a traveling light pulse
Victor Rueskov Christiansen, Mads Middelhede Lund, Fan Yang +1
The Jaynes-Cummings model provides a simple and accurate description of the interaction between a two-level quantum emitter and a single mode of quantum radiation. Due to the multi…
Probing Hilbert Space Fragmentation with Strongly Interacting Rydberg Atoms
Fan Yang, Hadi Yarloo, Hua-Chen Zhang +2
Hilbert space fragmentation provides a mechanism to break ergodicity in closed many-body systems. Here, we propose a feasible scheme to explore this exotic paradigm on a Rydberg qu…