Preparing dicke states in a spin ensemble

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August undefined, 2024

WebWe present a Dicke state preparation scheme which uses global control of N spin qubits: our scheme is based on the standard phase estimation algorithm, which estimates the eigenvalue of a unitary operator. The scheme prepares a Dicke state non-deterministically by collectively coupling the spins to an ancilla qubit via a ZZ-interaction, using ⌈log2N⌉+1 … WebTo entangle the atoms and produce spin-squeezed states, we employ a Rydberg-dressing protocol where a laser off-resonantly couples the clock state to a high-lying Rydberg …

Preparation of spin eigenstates including the Dicke states with ...

Web4.Andreas Bärtschi and Stephan Eidenbenz, "Deterministic Preparation of Dicke States", 22nd International Symposium on Fundamentals of Computation Theory FCT’19, pp. 126-139, 2024.Show in Context, DOI: 10.1007/978-3-030-25027-0_9; Label: [5] Title: Grover Mixers for QAOA: Shifting Complexity from Mixer Design to State Preparation ... Webalgorithms for preparing Dicke states which are based on the full addressability of the qubits [25,26]. To address this issue, some work has been dedicated to schemes which require … jewelry stores plaka athens greece

Preparation of spin eigenstates including the Dicke states with ...

WebApart from generating time scales,frequency standards offer a wide range of applications from the measurements of other quantities such as length,electric current,etc. to the tests of fundamental physics principles.Time and frequency also play a vital role in the navigation systems,network synchronization in the telecommunication field,etc.Today,the … WebThe preparation of such Dicke states can be useful if the spins in the ensemble are used for magnetic sensing: we discuss a possible realization using an ensemble of electronic spins located at diamond nitrogen-vacancy centers coupled to a single superconducting flux qubit. We also analyze the effect of noise and limitations in our scheme. WebA central prediction of the Dicke model is a quantum phase transition between a superradiant phase and a normal phase. We detect this transition in a spin-orbit-coupled … instalar debian junto a windows 10

Barbara Terhal (0000-0003-0218-6614) - ORCID

WebMar 11, 2024 · z on the atom ensemble and generate quantum states of the atom ensemble. 3. Quantum superposition of Dicke states When the phase of the local oscillator is chosen as f = 0, we measure the X quadrature¡out out02=º+Xcc ( ) out †, which contains the information about the spin operator S z 2. From equation (11), we obtain the … WebTo entangle the atoms and produce spin-squeezed states, we employ a Rydberg-dressing protocol where a laser off-resonantly couples the clock state to a high-lying Rydberg state. We characterize the improved sensitivity of spin-squeezed states in a Ramsey interferometer by comparing two or more sub-ensembles of the atom array. jewelry stores philadelphia jewelers row jewelry stores pickerington ohio

"WebWe propose a scheme to generate the macroscopic entangled Schrödinger cat state of two mechanical resonators in a hybrid optomechanical system by introducing modulated photon-hopping interaction between two cavities. We show that the obtained entangled cat state possesses large average phonon number and the two base vectors of … " - Preparing dicke states in a spin ensemble

Preparing dicke states in a spin ensemble

Dicke-type phase transition in a spin-orbit-coupled Bose–Einstein ...

WebNext we discuss general principles of quantum feedback control, and apply them to quantum state preparation in the atomic ensemble. We consider three cases: producing spin-squeezed states, preparing Dicke states (the long-time limit), and producing twin-ensemble squeezing. Where appropriate, we emphasize relations with experiments. WebPreparing Dicke states in a spin ensemble using phase estimation. Physical Review A 2024-09-09 Journal article DOI: 10.1103/PhysRevA.104.032407 Contributors: Yang Wang; …

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WebPreparing Dicke states in a spin ensemble using phase estimation. Wang, Y. ; Terhal, B. M. (Corresponding author) * 2024 Inst. Woodbury, NY. ... 5221 - Advanced Solid-State Qubits and Qubit Systems (POF4-522) (POF4-522) Appears in … WebWe present a Dicke state preparation scheme which uses global control of N spin qubits: our scheme is based on the standard phase estimation algorithm, which estimates the …

WebPreparing Dicke states in a spin ensemble using phase estimation. We present a Dicke state preparation scheme which uses global control of spin qubits: our scheme is based on the standard phase estimation algorithm, which estimates the eigenvalue of a unitary … WebWe investigate the quantum non-demolition (QND) measurement of an atomic population based on a heterodyne detection and show that the induced back-action allows to prepare …

WebWe present a Dicke state preparation scheme which uses global control of N spin qubits: our scheme is based on the standard phase estimation algorithm, which estimates the … WebThe preparation of such Dicke states can be useful if the spins in the ensemble are used for magnetic sensing: we discuss a possible realization using an ensemble of electronic …

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WebOct 11, 2024 · Consider an atom ensemble initially prepared in a coherent spin state (CSS) along the x axis satisfying , which can be represented in the basis of the Dicke states as where is the Dicke state with an eigenvalue of m under the operator of are the coefficients, and S = N /2 for the ensemble of N atoms. jewelry stores peterborough ontarioWebspin represents the collective state of an ensemble of qubits, its nonclassical behavior is linked to entanglement between the qubits. In this paper, we report on an experimental study of entanglement between two subsystems of dysprosium’s electronic spin. Its ground state, of angular momentum J = 8, can formally be viewed as a set of 2J instalar directv go en amazon fire stickWebWe characterize the long-time projective behavior of the stochastic master equation describing a continuous, collective spin measurement of an atomic ensemble both … jewelry stores perth waWebJun 24, 2024 · Optical pumping can be applied to counteract the thermal excitation of the NV centers and to prepare the spin ensemble in Dicke states with high symmetry. The resulting strong coupling with high-quality resonators enables the study of intriguing CQED effects across the weak-to-strong coupling regime, and may have applications in quantum … jewelry stores perkins cove maineWebNov 29, 2024 · We study trajectories of collective spin states of an ensemble of spinors. The spinors considered here are either trapped ions in free space or atoms confined in a cavity, both systems of which are engineered through their interactions with light fields to obey an effective Dicke model. In an appropriate limit of the Dicke model, one obtains one-axis … jewelry stores peachtree city gaWebIn this work, we generate spin squeezed ground states in an atomic spin-1 Bose-Einstein condensate tuned near the quantum critical point between the polar and ferromagnetic … jewelry stores philadelphia chestnut streetWebFIG. 5. (Color online) The output fidelity of the preparation scheme with inaccurate control of the flux qubit. Here we fix the spin number N = 500, and the coupling strength γ = 5MHz. … jewelry stores port of spain