Controlling Matter Phases beyond Markov

• URL: http://arxiv.org/abs/2307.01119v4
• Date: Thu, 10 Oct 2024 12:14:57 GMT
• Title: Controlling Matter Phases beyond Markov
• Authors: Baptiste Debecker, John Martin, François Damanet,
• Abstract summary: We show that memory effects can be leveraged to reshape matter phase boundaries. We also reveal the existence of dissipative phase transitions genuinely triggered by non-Markovian effects.
• Score: 0.0
• License:
• Abstract: Controlling phase transitions in quantum systems via coupling to reservoirs has been mostly studied for idealized memory-less environments under the so-called Markov approximation. Yet, most quantum materials and experiments in the solid state, atomic, molecular and optical physics are coupled to reservoirs with finite memory times. Here, using the spectral theory of non-Markovian dissipative phase transitions developed in the companion paper [Debecker et al., Phys. Rev. A 110, 042201 (2024)], we show that memory effects can be leveraged to reshape matter phase boundaries, but also reveal the existence of dissipative phase transitions genuinely triggered by non-Markovian effects.

Related papers

• Spectral theory of non-Markovian dissipative phase transitions [0.0]
  We present a generalization of the theory of dissipative phase transitions to non-Markovian systems. We show that our framework can capture all the expected signatures of the superradiant phase transition appearing in a challenging $U(1)$-symmetric two-mode Dicke model.
  arXiv  Detail & Related papers  (2024-10-10T13:04:37Z)
• Thermalization and Criticality on an Analog-Digital Quantum Simulator [133.58336306417294]
  We present a quantum simulator comprising 69 superconducting qubits which supports both universal quantum gates and high-fidelity analog evolution. We observe signatures of the classical Kosterlitz-Thouless phase transition, as well as strong deviations from Kibble-Zurek scaling predictions. We digitally prepare the system in pairwise-entangled dimer states and image the transport of energy and vorticity during thermalization.
  arXiv  Detail & Related papers  (2024-05-27T17:40:39Z)
• Adiabatic State Preparation in a Quantum Ising Spin Chain [32.352947507436355]
  We report on adiabatic state preparation in the one-dimensional quantum Ising model using ultracold bosons in a tilted optical lattice. We observe enhanced fluctuations around the transition between paramagnetic and antiferromagnetic states, marking the precursor of quantum critical behavior.
  arXiv  Detail & Related papers  (2024-04-11T05:27:40Z)
• Probing quantum floating phases in Rydberg atom arrays [61.242961328078245]
  We experimentally observe the emergence of the quantum floating phase in 92 neutral-atom qubits. The site-resolved measurement reveals the formation of domain walls within the commensurate ordered phase. As the experimental system sizes increase, we show that the wave vectors approach a continuum of values incommensurate with the lattice.
  arXiv  Detail & Related papers  (2024-01-16T03:26:36Z)
• Non-Hermitian topological quantum states in a reservoir-engineered transmon chain [0.0]
  We show that a non-Hermitian quantum phase can be realized in a reservoir-engineered transmon chain. We show that genuine quantum effects are observable in this system via robust and slowly decaying long-range quantum entanglement of the topological end modes.
  arXiv  Detail & Related papers  (2022-10-06T15:21:21Z)
• Dynamical quantum phase transitions in a spinor Bose-Einstein condensate and criticality enhanced quantum sensing [2.3046646540823916]
  Quantum phase transitions universally exist in the ground and excited states of quantum many-body systems. We unravel that both the ground and excited-state quantum phase transitions in spinor condensates can be diagnosed with dynamical phase transitions. This work advances the exploration of excited-state quantum phase transitions via a scheme that can immediately be applied to a broad class of few-mode quantum systems.
  arXiv  Detail & Related papers  (2022-09-23T05:27:17Z)
• Continuous phase transition induced by non-Hermiticity in the quantum contact process model [44.58985907089892]
  How the property of quantum many-body system especially the phase transition will be affected by the non-hermiticity remains unclear. We show that there is a continuous phase transition induced by the non-hermiticity in QCP. We observe that the order parameter and susceptibility display infinitely even for finite size system, since non-hermiticity endows universality many-body system with different singular behaviour from classical phase transition.
  arXiv  Detail & Related papers  (2022-09-22T01:11:28Z)
• Enhanced nonlinear quantum metrology with weakly coupled solitons and particle losses [58.720142291102135]
  We offer an interferometric procedure for phase parameters estimation at the Heisenberg (up to 1/N) and super-Heisenberg scaling levels. The heart of our setup is the novel soliton Josephson Junction (SJJ) system providing the formation of the quantum probe. We illustrate that such states are close to the optimal ones even with moderate losses.
  arXiv  Detail & Related papers  (2021-08-07T09:29:23Z)
• Witness of topological phase transition and Weyl points in an open topological system [0.2580765958706854]
  Recently, the tunable Weyl-semimetal bands and the associate topological phase oscillation transition have been successfully simulated in superconducting quantum circuits. We focus on the steady state and decoherence process by taking the reservoir into consideration via quantum master equation.
  arXiv  Detail & Related papers  (2020-07-27T00:50:28Z)
• Universality of entanglement transitions from stroboscopic to continuous measurements [68.8204255655161]
  We show that the entanglement transition at finite coupling persists if the continuously measured system is randomly nonintegrable. This provides a bridge between a wide range of experimental settings and the wealth of knowledge accumulated for the latter systems.
  arXiv  Detail & Related papers  (2020-05-04T21:45:59Z)
• Dissipative Berry phase effect in quantum tunneling [1.0152838128195465]
  Berry phase effect plays a central role in many mesoscale condensed matter and quantum chemical systems. We derive a quantum coherent tunneling model around a monopole or conical potential intersection. It reveals a novel dissipative quantum interference phenomenon with Berry phase effect.
  arXiv  Detail & Related papers  (2020-04-19T23:11:38Z)

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.