242 citations · 523 across the 24 of their papers we have counts for
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Entangled Photons Enabled Ultrafast Stimulated Raman Spectroscopy for Molecular Dynamics
Joel Jiahao Fan, Zhe-Yu Jeff Ou, Zhedong Zhang
Quantum entanglement has emerged as a great resource for interactions between molecules and radiation. We propose a new paradigm of stimulated Raman scattering with entangled photo…
Multidimensional Coherent Spectroscopy of Molecular Polaritons: Langevin Approach
Zhedong Zhang, Xiaoyu Nie, Dangyuan Lei +1
We present a microscopic theory for nonlinear optical spectroscopy of N molecules in an optical cavity. A quantum Langevin analytical expression is derived for the time- and freque…
Entangled Photons Enabled Time- and Frequency-Resolved Coherent Raman Spectroscopy in Condensed Phase Molecules
Zhedong Zhang, Tao Peng, Xiaoyu Nie +2
We develop an ultrafast frequency-resolved Raman spectroscopy with entangled photons for polyatomic molecules in condensed phases, to probe the electronic and vibrational coherence…
Universal Quantum Fluctuation-Dissipation Relation for Systems Far From Equilibrium
Zhedong Zhang, Xuanhua Wang, Jin Wang
Fluctuations associated with relaxations in far-from-equilibrium regime is of fundamental interest for a large variety of systems within broad scales. Recent advances in techniques…
Nonlinear Spin Currents
Jayakrishnan M. P. Nair, Zhedong Zhang, Marlan O. Scully +1
The cavity mediated spin current between two ferrite samples has been reported by Bai et. al. [Phys. Rev. Lett. 118, 217201 (2017)]. This experiment was done in the linear regime o…
Excitation Energy Transfer under Strong Laser Drive
Xuanhua Wang, Zhedong Zhang, Jin Wang
Strong molecule-light interaction enables the control of molecular structures and dynamical processes. A model with strong laser drive is proposed to greatly enhance the intermolec…
Quantum entanglement between two magnon modes via Kerr nonlinearity
Zhedong Zhang, Marlan O. Scully, Girish S. Agarwal
We propose a scheme to entangle two magnon modes via Kerr nonlinear effect when driving the systems far-from-equilibrium. We consider two macroscopic yttrium iron garnets (YIGs) in…
Quantum fluctuations in Fröhlich condensate of molecular vibrations driven far from equilibrium
Zhedong Zhang, Girish S. Agarwal, Marlan O. Scully
Fröhlich discovered the remarkable condensation of polar vibrations into the lowest frequency mode when the system is pumped externally. For a full understanding of the Fröhlich co…
Enhanced molecular chiral signals via molecular coherence
Tuguldur Kh. Begzjav, Zhedong Zhang, Marlan O. Scully +1
One of the most widely used chiroptical spectroscopic methods for studying chiral molecules is Raman optical activity; however, the chiral Raman optical activity signal is extremel…
Local fluctuations of vibrational polaritons monitored by two-dimensional infrared spectroscopy
Zhedong Zhang, Kai Wang, Zhenhuan Yi +2
We study the collective behavior of molecules placed in an infrared (IR) microcavity, incorporating the local fluctuations, i.e., dynamical disorder. The cooperative feature in vib…
Utilizing Microcavities to Suppress Third-order Cascades in Fifth-order Raman Spectra
Zhedong Zhang, Kochise Bennett, Vladimir Chernyak +1
Nonlinear optical signals in the condensed phase are often accompanied by sequences of lower-order processes, known as cascades, which share the same phase matching and power depen…
Vibrational and coherence dynamics of molecules
Zhedong Zhang, Jin Wang
We {\it analytically} investigate the population and coherence dynamics and relaxations in the vibrational energy transport in molecules. The corresponding two time scales an…
Complete controllability of finite quantum systems with two-fold energy level degeneracy
Zhedong Zhang, H. C. Fu
Complete controllability of finite dimensional quantum systems with energy level degeneracy is investigated using two different approaches. One approach is to apply a weak constant…