Creating triple-NOON states with ultracold atoms via chaos-assisted tunneling

• URL: http://arxiv.org/abs/2202.05589v2
• Date: Thu, 26 May 2022 17:11:56 GMT
• Title: Creating triple-NOON states with ultracold atoms via chaos-assisted tunneling
• Authors: Guillaume Vanhaele, Arnd B\"acker, Roland Ketzmerick, Peter Schlagheck
• Abstract summary: Triple-NOON states are superpositions of the form $ei varphi_1 |N,0,N,0rangle + ei varphi_3 |0,N,0rangle$ involving $N$ bosonic quanta distributed over three modes. We show how such highly entangled states can be generated with interacting ultracold bosonic atoms in a symmetric three-site lattice.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Triple-NOON states are superpositions of the form $e^{i \varphi_1} |{N,0,0}\rangle + e^{i \varphi_2} |{0,N,0}\rangle + e^{i \varphi_3} |{0,0,N}\rangle$ involving $N$ bosonic quanta distributed over three modes. We theoretically show how such highly entangled states can be generated with interacting ultracold bosonic atoms in a symmetric three-site lattice. The basic protocol consists in preparing all atoms on one site of the lattice and then letting the system evolve during a specific time such that collective tunneling of the atoms to the other two sites takes place. The key point put forward here is that this evolution time can be reduced by several orders of magnitude via the application of a periodic driving of the lattice, thereby rendering this protocol feasible in practice. This driving is suitably tuned such that classical chaos is generated in the entire accessible phase space except for the Planck cells that host the states participating at the above triple-NOON superposition. Chaos-assisted tunneling can then give rise to a dramatic speed-up of this collective tunneling process, without significantly affecting the purity of this superposition. A triple-NOON state containing $N = 5$ particles can thereby be realized with $^{87}$Rb atoms on time scales of the order of a few seconds.

Related papers

• Fusion of atomic W-like states in cavity QED systems [5.45511111377454]
  We propose two kinds of novel and efficient fusion schemes for atomic W-like states based on the large-detuning interactions between several atoms and a single-mode cavity field. Although the fusion process of our scheme involves particle loss, the corresponding success probability is high and fixed, which may induce high fusion efficiency.
  arXiv  Detail & Related papers  (2024-07-10T13:01:05Z)
• Accelerated creation of NOON states with ultracold atoms via counterdiabatic driving [0.0]
  A quantum control protocol is proposed for the creation of NOON states with $N$ ultracold bosonic atoms on two modes. This state can be prepared by using a third mode where all bosons are initially placed and which is symmetrically coupled to the two other modes. tuning the energy of this third mode across the energy level of the other modes allows the adiabatic creation of the NOON state.
  arXiv  Detail & Related papers  (2024-06-25T13:32:42Z)
• Coherence time of 20 s with a single cesium atom in an optical dipole trap [23.434915938124956]
  We analyze the decoherence between two ground electronic states of an optically trapped atom. A new decoherence mechanism, phonon-jumping-induced decoherence (PJID) is discovered and verified experimentally.
  arXiv  Detail & Related papers  (2023-12-18T13:42:46Z)
• Strongly subradiant states in planar atomic arrays [39.58317527488534]
  We study collective dipolar oscillations in finite planar arrays of quantum emitters in free space. We show that the external coupling between the collective states associated with the symmetry of the array and with the quasi-flat dispersion of the corresponding infinite lattice plays a crucial role in the boost of their radiative lifetime.
  arXiv  Detail & Related papers  (2023-10-10T17:06:19Z)
• Scalable Atomic Arrays for Spin-Based Quantum Computers in Silicon [25.271311916546793]
  We demonstrate and integrate multiple strategies to manufacture scale-up donor-based quantum computers. We use $31$PF_2$ molecule implants to triple the placement certainty compared to $31$P ions. Similar confidence is retained by implanting heavier atoms such as $123$Sb and $209$Bi.
  arXiv  Detail & Related papers  (2023-09-18T09:56:50Z)
• Coherent dynamics in a five-level atomic system [62.997667081978825]
  coherent control of multi-partite quantum systems is one of the central prerequisites in quantum information processing. Laser-cooled neon atoms in the metastable state of state $1s2 2s2 2p5 3s$ are prepared. Coherence properties of the prepared states are studied using Ramsey and spin echo measurements.
  arXiv  Detail & Related papers  (2022-10-21T11:44:15Z)
• Partitioning dysprosium's electronic spin to reveal entanglement in non-classical states [55.41644538483948]
  We report on an experimental study of entanglement in dysprosium's electronic spin. Our findings open up the possibility to engineer novel types of entangled atomic ensembles.
  arXiv  Detail & Related papers  (2021-04-29T15:02:22Z)
• Scalable $W$-type entanglement resource in neutral-atom arrays with Rydberg-dressed resonant dipole-dipole interaction [0.0]
  A scalable entanglement resource of this type can even be obtained under completely different physical circumstances. A special instance of twisted $W$ states -- namely, $pi$-twisted ones -- can be engineered in one-dimensional arrays of cold neutral atoms.
  arXiv  Detail & Related papers  (2021-01-27T07:27:16Z)
• NOON states with ultracold bosonic atoms via resonance- and chaos-assisted tunneling [0.0]
  We theoretically investigate the generation of microscopic atomic NOON states, corresponding to the coherent |N,0> + |0,N> superposition with N 5 particles. We show that a periodic driving of the double well with suitably tuned amplitude and frequency parameters allows one to substantially boost this tunneling process without altering its collective character.
  arXiv  Detail & Related papers  (2020-08-27T14:34:25Z)
• Quantum anomalous Hall phase in synthetic bilayers via twistless twistronics [58.720142291102135]
  We propose quantum simulators of "twistronic-like" physics based on ultracold atoms and syntheticdimensions. We show that our system exhibits topologicalband structures under appropriate conditions.
  arXiv  Detail & Related papers  (2020-08-06T19:58:05Z)
• Subradiant emission from regular atomic arrays: universal scaling of decay rates from the generalized Bloch theorem [8.527960992762184]
  We show that a dispersion relation leads to the existence of subradiant states of finite one-dimensional arrays of $N$ atoms with decay rates scaling as $N-(s+1)$. This explains the recently discovered $N-3$ scaling and it leads to the prediction of power law scaling with higher power for special values of the lattice period.
  arXiv  Detail & Related papers  (2020-06-11T11:06:18Z)

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.