Chiral Quantum Network with Giant Atoms

• URL: http://arxiv.org/abs/2106.13187v3
• Date: Tue, 10 May 2022 01:45:32 GMT
• Title: Chiral Quantum Network with Giant Atoms
• Authors: Xin Wang and Hong-rong Li
• Abstract summary: In superconducting quantum circuits (SQCs), chiral routing quantum information is often realized with the ferrite circulators. We propose a novel method to realize chiral quantum networks by exploiting giant atom effects in SQC platforms.
• Score: 7.33811357166334
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In superconducting quantum circuits (SQCs), chiral routing quantum information is often realized with the ferrite circulators, which are usually bulky, lossy and require strong magnetic fields. To overcome those problems, we propose a novel method to realize chiral quantum networks by exploiting giant atom effects in SQC platforms. By assuming each coupling point being modulated with time, the interaction becomes momentum-dependent, and giant atoms will chirally emit photons due to interference effects. The chiral factor can approach 1, and both the emission direction and rate can be freely tuned by the modulating signals. We demonstrate that a high-fidelity state transfer between remote giant atoms can be realized. Our proposal can be integrated on the superconducting chip easily, and has the potential to work as a tunable toolbox for quantum information processing in future chiral quantum networks.

Related papers

• Strong coupling of a superconducting flux qubit to single bismuth donors [0.0]
  Single bismuth donors can coherently transfer their quantum information to a superconducting flux qubit. This superconducting device allows to connect distant spins on-demand with little impact on their coherent behavior.
  arXiv  Detail & Related papers  (2024-11-05T06:54:09Z)
• Quantum State Transfer in a Magnetic Atoms Chain Using a Scanning Tunneling Microscope [44.99833362998488]
  The electric control of quantum spin chains has been an outstanding goal for the few last years due to its potential use in technologies related to quantum information processing. We show the feasibility of the different steps necessary to perform controlled quantum state transfer in a $S=1/2$ titanium atoms chain employing the electric field produced by a Scanning Tunneling Microscope (STM)
  arXiv  Detail & Related papers  (2024-08-13T14:45:46Z)
• Hole Flying Qubits in Quantum Dot Arrays [1.0446041735532203]
  We show that electric field manipulation allows dynamical control of the SOI, enabling simultaneously the implementation of quantum gates during the transfer. We employ dynamical decoupling schemes to focus and preserve the spin state, leading to higher transfer fidelity.
  arXiv  Detail & Related papers  (2023-12-07T19:00:02Z)
• Bound state of distant photons in waveguide quantum electrodynamics [137.6408511310322]
  Quantum correlations between distant particles remain enigmatic since the birth of quantum mechanics. We predict a novel kind of bound quantum state in the simplest one-dimensional setup of two interacting particles in a box. Such states could be realized in the waveguide quantum electrodynamics platform.
  arXiv  Detail & Related papers  (2023-03-17T09:27:02Z)
• Jellybean quantum dots in silicon for qubit coupling and on-chip quantum chemistry [0.6818394664182874]
  Small size and excellent integrability of silicon metal-oxide-semiconductor (SiMOS) quantum dot spin qubits make them an attractive system for mass-manufacturable, scaled-up quantum processors. This paper investigates the charge and spin characteristics of an elongated quantum dot for the prospects of acting as a qubit-qubit coupler.
  arXiv  Detail & Related papers  (2022-08-08T12:24:46Z)
• Simulation of interaction-induced chiral topological dynamics on a digital quantum computer [3.205614282399206]
  Chiral edge states are sought-after as paradigmatic topological states relevant to quantum information processing and electron transport. We demonstrate chiral topological propagation that is induced by suitably designed interactions, instead of flux or spin-orbit coupling. By taking advantage of the quantum nature of the platform, we circumvented difficulties from the limited qubit number and gate fidelity in present-day noisy intermediate-scale quantum (NISQ)-era quantum computers.
  arXiv  Detail & Related papers  (2022-07-28T18:00:29Z)
• An electrically-driven single-atom `flip-flop' qubit [43.55994393060723]
  Quantum information is encoded in the electron-nuclear states of a phosphorus donor. Results pave the way to the construction of solid-state quantum processors.
  arXiv  Detail & Related papers  (2022-02-09T13:05:12Z)
• Robust quantum-network memory based on spin qubits in isotopically engineered diamond [0.0]
  We show that a single 13C spin in isotopically engineered diamond offers a long-lived quantum memory that is robust to the optical link operation of an NV centre. Our results pave the way for test-bed quantum networks capable of investigating complex algorithms and error correction.
  arXiv  Detail & Related papers  (2021-11-18T16:13:45Z)
• Information Scrambling in Computationally Complex Quantum Circuits [56.22772134614514]
  We experimentally investigate the dynamics of quantum scrambling on a 53-qubit quantum processor. We show that while operator spreading is captured by an efficient classical model, operator entanglement requires exponentially scaled computational resources to simulate.
  arXiv  Detail & Related papers  (2021-01-21T22:18:49Z)
• Entanglement transfer, accumulation and retrieval via quantum-walk-based qubit-qudit dynamics [50.591267188664666]
  Generation and control of quantum correlations in high-dimensional systems is a major challenge in the present landscape of quantum technologies. We propose a protocol that is able to attain entangled states of $d$-dimensional systems through a quantum-walk-based it transfer & accumulate mechanism. In particular, we illustrate a possible photonic implementation where the information is encoded in the orbital angular momentum and polarization degrees of freedom of single photons.
  arXiv  Detail & Related papers  (2020-10-14T14:33:34Z)
• Circuit Quantum Electrodynamics [62.997667081978825]
  Quantum mechanical effects at the macroscopic level were first explored in Josephson junction-based superconducting circuits in the 1980s. In the last twenty years, the emergence of quantum information science has intensified research toward using these circuits as qubits in quantum information processors. The field of circuit quantum electrodynamics (QED) has now become an independent and thriving field of research in its own right.
  arXiv  Detail & Related papers  (2020-05-26T12:47:38Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.