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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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23 papers · 2 filters
The influence of pump coherence on the generation of position-momentum entanglement in down-conversion
Wuhong Zhang, Robert Fickler, Enno Giese +2
Strong correlations in two conjugate variables are the signature of quantum entanglement and have played a key role in the development of modern physics. Entangled photons have bec…
Performance analysis of d-dimensional quantum cryptography under state-dependent diffraction
Jiapeng Zhao, Mohammad Mirhosseini, Boris Braverman +7
Standard protocols for quantum key distribution (QKD) require that the sender be able to transmit in two or more mutually unbiased bases. Here, we analyze the extent to which the p…
Stabilization and manipulation of multispin states in quantum-dot time crystals with Heisenberg interactions
Edwin Barnes, John M. Nichol, Sophia E. Economou
A discrete time crystal is a recently discovered non-equilibrium phase of matter that has been shown to exist in disordered, periodically driven Ising spin chains. In this phase, i…
Coherent quantum dynamics of systems with coupling-induced creation pathways
Steven D. Rogers, Austin Graf, Usman A. Javid +1
Many technologies emerging from quantum information science heavily rely upon the generation and manipulation of entangled quantum states. Here, we propose and demonstrate a new cl…
The phase sensitivity of a fully quantum three-mode nonlinear interferometer
Jefferson Flórez, Enno Giese, Davor Curic +3
We study a nonlinear interferometer consisting of two consecutive parametric amplifiers, where all three optical fields (pump, signal and idler) are treated quantum mechanically, a…
A Primary Radiation Standard Based on Quantum Nonlinear Optics
Samuel Lemieux, Enno Giese, Robert Fickler +2
The spectrum of vacuum fluctuations of the electromagnetic field is determined solely from first physical principles and can be seen as a fundamental property that qualifies as a p…
Introduction to the Absolute Brightness and Number Statistics in Spontaneous Parametric Down-Conversion
James Schneeloch, Samuel H. Knarr, Daniela F. Bogorin +6
As a tutorial, we examine the absolute brightness and number statistics of photon pairs generated in Spontaneous Parametric Down-Conversion (SPDC) from first principles. In doing s…
Fluctuation Theorems for Continuous Quantum Measurement and Absolute Irreversibility
Sreenath K. Manikandan, Cyril Elouard, Andrew N. Jordan
Fluctuation theorems are relations constraining the out-of-equilibrium fluctuations of thermodynamic quantities like the entropy production that were initially introduced for class…
Influence of pump coherence on the quantum properties of spontaneous parametric down-conversion
Enno Giese, Robert Fickler, Wuhong Zhang +2
The correlation properties of the pump field in spontaneous parametric down-conversion are crucial in determining the degree of entanglement of generated signal and idler photons.…
Single-shot energetic-based estimator for entanglement in a half-parity measurement setup
Cyril Elouard, Alexia Auffèves, Géraldine Haack
Producing and certifying entanglement between distant qubits is a highly desirable skill for quantum information technologies. Here we propose a new strategy to monitor and charact…
Entanglement Polygon Inequality in Qubit Systems
Xiao-Feng Qian, Miguel A. Alonso, Joseph H. Eberly
We prove a set of tight entanglement inequalities for arbitrary -qubit pure states. By focusing on all bi-partite marginal entanglements between each single qubit and its remain…
Optimal measurements for quantum multiparameter estimation with general states
Jing Yang, Shengshi Pang, Yiyu Zhou +1
We generalize the approach by Braunstein and Caves [Phys. Rev. Lett. 72, 3439 (1994)] to quantum multi-parameter estimation with general states. We derive a matrix bound of the cla…
Quantum state tomography with time-continuous measurements: reconstruction with resource limitations
Areeya Chantasri, Shengshi Pang, Teerawat Chalermpusitarak +1
We propose and analyze quantum state estimation (tomography) using continuous quantum measurements with resource limitations, allowing the global state of many qubits to be constru…
Work, heat and entropy production along quantum trajectories
Cyril Elouard, Hamed Mohammady
Quantum open systems evolve according to completely positive, trace preserving maps acting on the density operator, which can equivalently be unraveled in term of so-called quantum…
An autonomous quantum machine to measure the thermodynamic arrow of time
Juliette Monsel, Cyril Elouard, Alexia Auffèves
According to the Second Law of thermodynamics, the evolution of physical systems has a preferred direction, that is characterized by some positive entropy production. Here we propo…
Bohr's Complementarity: Completed with Entanglement
X. -F. Qian, A. N. Vamivakas, J. H. Eberly
Ninety years ago in 1927, at an international congress in Como, Italy, Niels Bohr gave an address which is recognized as the first instance in which the term "complementarity", as…
Chaos in Continuously Monitored Quantum Systems: An Optimal Path Approach
Philippe Lewalle, John Steinmetz, Andrew N. Jordan
We predict that continuously monitored quantum dynamics can be chaotic. The optimal paths between past and future boundary conditions can diverge exponentially in time when there i…
Light, the universe, and everything -- 12 Herculean tasks for quantum cowboys and black diamond skiers
Girish Agarwal, Roland Allen, Iva Bezdekova +29
The Winter Colloquium on the Physics of Quantum Electronics (PQE) has been a seminal force in quantum optics and related areas since 1971. It is rather mindboggling to recognize ho…
Bright squeezed vacuum in a nonlinear interferometer: frequency/temporal Schmidt-mode description
P. R. Sharapova, O. V. Tikhonova, S. Lemieux +2
Control over the spectral properties of the bright squeezed vacuum (BSV), a highly multimode non-classical macroscopic state of light that can be generated through high-gain parame…
How efficient is transport of quantum cargo through multiple highways?
Saptarshi Roy, Tamoghna Das, Debmalya Das +2
Quantum states can be efficiently transferred over a long distance if the entire quantum channel can be divided into several small blocks. We consider a scenario in which each bloc…
Experimental investigation of high-dimensional quantum key distribution protocols with twisted photons
Frédéric Bouchard, Khabat Heshami, Duncan England +5
Quantum key distribution is on the verge of real world applications, where perfectly secure information can be distributed among multiple parties. Several quantum cryptographic pro…
Efficient Quantum Measurement Engine
Cyril Elouard, Andrew N. Jordan
We propose quantum engines powered entirely by the quantum measurement process. Our theoretical construction of the engine requires no work from the system Hamiltonian, and takes e…
Time reversal symmetry of generalized quantum measurements with past and future boundary conditions
Sreenath K. Manikandan, Andrew N. Jordan
We expand the time reversal symmetry arguments of quantum mechanics, originally proposed by Wigner in the context of unitary dynamics, to contain situations including generalized m…