Level attraction from interference in two-tone driving
arXiv:2404.17108 · doi:10.1103/PhysRevApplied.23.014048
Abstract
Coherent and dissipative couplings, respectively characterised by energy level repulsion and attraction, each have different applications for quantum information processing. Thus, a system in which both coherent and dissipative couplings are tunable on-demand and in-situ is tantalising. A first step towards this goal is the two-tone driving of two bosonic modes, whose experimental signature was shown to exhibit controllable level repulsion and attraction by changing the phase and amplitude of one drive. However, whether the underlying physics is that of coherent and dissipative couplings has not been clarified, and cannot be concluded solely from the measured resonances (or anti-resonances) of the system. Here, we show how the physics at play can be analysed theoretically. Combining this theory with realistic finite-element simulations, we deduce that the observation of level attraction originates from interferences due to the measurement setup, and not dissipative coupling. Beyond the clarification of a novel origin for level attraction attributed to interference, our work demonstrate how effective Hamiltonians can be derived to appropriately describe the physics.
References in corpus (37)
- The Quantum Internet
- Cavity Optomechanics
- Ultrastrong coupling between light and matter
- The physics of exceptional points
- Topological energy transfer in an optomechanical system with exceptional points
- Hybrid quantum systems based on magnonics
- Quantum vacuum properties of the intersubband cavity polariton field
- High Cooperativity Cavity QED with Magnons at Microwave Frequencies
- Nonreciprocal Photon Transmission and Amplification via Reservoir Engineering
- Generalized nonreciprocity in an optomechanical circuit via synthetic magnetism and reservoir engineering
- Nonreciprocity and Unidirectional Invisibility in Cavity Magnonics
- Observation of the exceptional point in cavity magnon-polaritons
- Time-reversal symmetry breaking in circuit-QED based photon lattices
- Parametric Normal-Mode Splitting in Cavity Optomechanics
- The reconfigurable Josephson circulator/directional amplifier
- Superstrong Coupling of a Microwave Cavity to YIG Magnons
- Higher-order exceptional point in a cavity magnonics system
- Dissipative couplings in cavity magnonics
- Realization of Attractive Level Crossing via a Dissipative Mode
- Synchronized spin-photon coupling in a microwave cavity
- Coherent and Dissipative Cavity Magnonics
- Theoretical methods for ultrastrong light-matter interactions
- Exceptional magnetic sensitivity of PT-symmetric cavity magnon polaritons
- Level attraction in a microwave optomechanical circuit
- Experimental Implementations of Cavity-Magnon Systems: from Ultra Strong Coupling to Applications in Precision Measurement
- Perspective: non-Hermitian physics in magnetic systems
- Probing decoherence through Fano resonances
- Control of the Coupling Strength and the Linewidth of a Cavity-Magnon Polariton
- Microscopic mechanism of level attraction
- Cavity-mediated dissipative spin-spin coupling
- Higher-order exceptional points in all-magnetic structures
- Unstable Avoided Crossing in Coupled Spinor Condensates
- Steering between Level Repulsion and Attraction: Broad tunability of Two-Port Driven Cavity Magnon-Polaritons
- Introduction to quantum non-reciprocal interactions: from non-Hermitian Hamiltonians to quantum master equations and quantum feedforward schemes
- Universal Characterisation of Cavity--Magnon Polariton Coupling Strength Verified in Modifiable Microwave Cavity
- Dissipative light-matter coupling and anomalous dispersion in nonideal cavities
- Manifestation of the coupling phase in microwave cavity magnonics