Coupling single molecule magnets to quantum circuits
arXiv:1306.4276 · doi:10.1088/1367-2630/15/9/095007
Abstract
In this work we study theoretically the coupling of single molecule magnets (SMMs) to a variety of quantum circuits, including microwave resonators with and without constrictions and flux qubits. The main results of this study is that it is possible to achieve strong and ultrastrong coupling regimes between SMM crystals and the superconducting circuit, with strong hints that such a coupling could also be reached for individual molecules close to constrictions. Building on the resulting coupling strengths and the typical coherence times of these molecules (of the order of microseconds), we conclude that SMMs can be used for coherent storage and manipulation of quantum information, either in the context of quantum computing or in quantum simulations. Throughout the work we also discuss in detail the family of molecules that are most suitable for such operations, based not only on the coupling strength, but also on the typical energy gaps and the simplicity with which they can be tuned and oriented. Finally, we also discuss practical advantages of SMMs, such as the possibility to fabricate the SMMs ensembles on the chip through the deposition of small droplets.
23 pages, 12 figures
References in corpus (18)
- Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
- Will spin-relaxation times in molecular magnets permit quantum information processing?
- Observation of the Bloch-Siegert Shift in a Qubit-Oscillator System in the Ultrastrong Coupling Regime
- Supramolecular Spin Valves
- Strong Coupling of a Spin Ensemble to a Superconducting Resonator
- Quantum tunneling of magnetization in lanthanide single-molecule magnets, bis(phthalocyaninato)terbium and bis(phthalocyaninato)-dysprosium anions
- Coplanar Waveguide Resonators for Circuit Quantum Electrodynamics
- Spin-Based Quantum Computers made by Chemistry: Hows and Whys
- Strong magnetic coupling of an ultracold gas to a superconducting waveguide cavity
- Quantum computing with an electron spin ensemble
- Decoherence in Crystals of Quantum Molecular Magnets
- Direct Observation of Quantum Coherence in Single-Molecule Magnets
- Pair-wise decoherence in coupled spin qubit networks
- Electron spin ensemble strongly coupled to a three-dimensional microwave cavity
- A hybrid quantum circuit consisting of a superconducting flux qubit coupled to both a spin ensemble and a transmission-line resonator
- Magnetic strong coupling in a spin-photon system and transition to classical regime
- Nonequilibrium phases in hybrid arrays with flux qubits and NV centers
- Broadband electron spin resonance from 500 MHz to 40 GHz using superconducting coplanar waveguides
Cited by in corpus (25)
- Role of vibrations on decoherence in molecular spin qubits: The case of [Cu(mnt)]
- Quantum computers as universal quantum simulators: state-of-art and perspectives
- Can ultrastrong coupling change ground state chemical reactions?
- Three addressable spin qubits in a molecular single-ion magnet
- A scalable architecture for quantum computation with molecular nanomagnets
- A perspective on scaling up quantum computation with molecular spins
- Enhanced molecular spin-photon coupling at superconducting nanoconstrictions
- Strong coupling of microwave photons to antiferromagnetic fluctuations in an organic magnet
- Blueprint of a Molecular Spin Quantum Processor
- Photon Condensation and Enhanced Magnetism in Cavity QED
- Nanometric constrictions in superconducting coplanar waveguide resonators
- Enhancing the spin-photon coupling with a micromagnet
- Spin squeezing by one-photon-two-atom excitations processes in atomic ensembles
- Effective theory for matter in non-perturbative cavity QED
- Nonperturbative cavity quantum electrodynamics: is the Jaynes-Cummings model still relevant?
- Strong coupling of a single photon to a magnetic vortex
- Improving superconducting resonators in magnetic fields by reduced field-focussing and engineered flux screening
- Unravelling the Spin Dynamics of Molecular Nanomagnets with Four-Dimensional Inelastic Neutron Scattering
- Quantum Error Correction with magnetic molecules
- Microwave dual-mode resonators for coherent spin-photon coupling
- Superradiant Quantum Phase transition for Landau Polaritons with Rashba and Zeeman couplings
- Semi-Empirical Haken-Strobl Model for Molecular Spin Qubits
- Entangled microwaves as a resource for entangling spatially separate solid-state qubits: superconducting qubits, NV centers and magnetic molecules
- Sensing single molecule magnets with nitrogen vacancy centers
- Enhancing Coherence with a Clock Transition and Dynamical Decoupling in the CrMn Molecular Nanomagnet