Laser-cut Patterned, Micrometer-thin Diamond Membranes with Coherent Color Centers for Open Microcavities

Kavli Affiliate: Ronald Hanson | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: Micrometer-scale thin diamond devices are key components for various quantum sensing and networking experiments, including the integration of color centers into optical microcavities. In this work, we introduce a laser-cutting method for patterning microdevices from millimeter-sized diamond membranes. The method […]


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Decoherence and fidelity enhancement during shuttling of entangled spin qubits

Kavli Affiliate: Viatcheslav V. Dobrovitski | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: Shuttling of spin qubits between different locations is a key element in many prospective semiconductor systems for quantum information processing, but the shuttled qubits should be protected from decoherence created by time- and space-dependent noises. Since the paths of […]


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Trans-dimensional Hamiltonian model selection and parameter estimation from sparse, noisy data

Kavli Affiliate: Tim H. Taminiau | First 5 Authors: Abigail N. Poteshman, Abigail N. Poteshman, , , | Summary: High-throughput characterization often requires estimating parameters and model dimension from experimental data of limited quantity and quality. Such data may result in an ill-posed inverse problem, where multiple sets of parameters and model dimensions are consistent […]


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Excitations and dynamical structure factor of $J_1-J_2$ spin-$3/2$ and spin-$5/2$ Heisenberg spin chains

Kavli Affiliate: Natalia Chepiga | First 5 Authors: Aman Sharma, Mithilesh Nayak, Natalia Chepiga, Frédéric Mila, | Summary: We study the dynamical structure factor of the frustrated spin-$3/2$ $J_1$-$J_2$ Heisenberg chains, with particular focus on the partially dimerized phase that emerges between two Kosterlitz-Thouless transitions. Using a valence bond solid ansatz corroborated by density matrix […]


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Ising versus infinite randomness criticality in arrays of Rydberg atoms trapped with non-perfect tweezers

Kavli Affiliate: Natalia Chepiga | First 5 Authors: Jose Soto-Garcia, Natalia Chepiga, , , | Summary: Chains of Rydberg atoms have emerged as an amazing platform for simulating quantum physics in low dimensions. This remarkable success is due to the versatility of lattice geometries achieved by trapping neutral atoms with optical tweezers. On a given […]


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Infinite randomness criticality and localization of the floating phase in arrays of Rydberg atoms trapped with non-perfect tweezers

Kavli Affiliate: Natalia Chepiga | First 5 Authors: Jose Soto-Garcia, Jose Soto-Garcia, , , | Summary: Chains of Rydberg atoms have emerged as a powerful platform for exploring low-dimensional quantum physics. This success originates from the precise control of lattice geometries provided by optical tweezers, which allows access to a wide range of synthetic quantum […]


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Magnon-magnon interaction induced by nonlinear spin wave dynamics

Kavli Affiliate: Herre S. J. Van Der Zant | First 5 Authors: Matteo Arfini, Matteo Arfini, , , | Summary: We experimentally and theoretically demonstrate that nonlinear spin-wave dynamics can induce an effective resonant interaction between non-resonant magnon modes in a yttrium iron garnet disk. Under strong pumping near the ferromagnetic resonance mode, we observe […]


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Exact zero modes in the interacting Majorana X- and Y-junctions

Kavli Affiliate: Natalia Chepiga | First 5 Authors: Rik Mulder, Bowy M. La Rivière, Natalia Chepiga, , | Summary: We report the appearance of exact zero modes in junctions of interacting Majorana wires. We consider two, three and four short Majorana chains coupled to each other at one edge and forming a longer chain with […]


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Optical spin pumping in silicon

Kavli Affiliate: Giordano Scappucci | First 5 Authors: Stefano Achilli, Damiano Marian, Mario Lodari, Emiliano Bonera, Giordano Scappucci | Summary: The generation of an out-of-equilibrium population of spin-polarized carriers is a keystone process for quantum technologies and spintronics alike. It can be achieved through the so-called optical spin orientation by exciting the material with circularly […]


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