Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Ramanathan, Chandrasekhar"'
Coherence times of spin qubits in solid-state platforms are often limited by the presence of a spin bath. While some properties of these typically dark bath spins can be indirectly characterized via the central qubit, it is important to characterize
Externí odkaz:
http://arxiv.org/abs/2312.12643
Autor:
Bussandri, Santiago, Shimon, Daphna, Equbal, Asif, Ren, Yuhang, Takahashi, Susumu, Ramanathan, Chandrasekhar, Han, Songi
Understanding the spatial distribution of P1 centers is crucial for diamond-based sensors and quantum devices. P1 centers serve as a polarization source for DNP quantum sensing and play a significant role in the relaxation of NV centers. Additionally
Externí odkaz:
http://arxiv.org/abs/2311.05396
Autor:
Cupo, Andrew, Heath, Joshuah T., Cobanera, Emilio, Whitfield, James D., Ramanathan, Chandrasekhar, Viola, Lorenza
Optical conductivity measurements may provide access to distinct signatures of Floquet electronic phases, which are described theoretically by their quasienergy band structures. We characterize experimental observables of the Floquet graphene antidot
Externí odkaz:
http://arxiv.org/abs/2303.02261
Autor:
Rao, Anantha, Carr, Stephen, Snider, Charles, Feldman, D. E., Ramanathan, Chandrasekhar, Mitrović, V. F.
In the presence of strong electronic spin correlations, the hyperfine interaction imparts long-range coupling between nuclear spins. Efficient protocols for the extraction of such complex information about electron correlations via magnetic response
Externí odkaz:
http://arxiv.org/abs/2212.01946
Autor:
Nikolov, Ilija K., Carr, Stephen, Del Maestro, Adrian G., Ramanathan, Chandrasekhar, Mitrović, Vesna F.
Nuclear magnetic resonance (NMR) experiments can reveal local properties in materials, but are often limited by the low signal-to-noise ratio. Spin squeezed states have an improved resolution below the Heisenberg limit in one of the spin components,
Externí odkaz:
http://arxiv.org/abs/2210.03697
Autor:
Carr, Stephen, Nikolov, Ilija K., Cong, Rong, Del Maestro, Adrian, Ramanathan, Chandrasekhar, Mitrović, V. F.
We present a multi-modal spectroscopic paradigm that enables independent measurement of charge and spin degrees of freedom (DOF) in strongly correlated materials. This spin-based technique probes symmetry-specific Hamiltonian parameters by analyzing
Externí odkaz:
http://arxiv.org/abs/2208.10987
Dynamic nuclear polarization (DNP) is a method of enhancing NMR signals via the transfer of polarization from electron spins to nuclear spins using on-resonance microwave (MW) irradiation. In most cases, monochromatic continuous-wave (MCW) MW irradia
Externí odkaz:
http://arxiv.org/abs/2207.14731
Autor:
Shimon, Daphna, Cantwell, Kelly A., Joseph, Linta, Williams, Ethan Q., Peng, Zaili, Takahashi, Susumu, Ramanathan, Chandrasekhar
We use microwave-induced dynamic nuclear polarization (DNP) of the substitutional nitrogen defects (P1 centers) in diamond to hyperpolarize bulk $^{13}$C nuclei in both single crystal and powder samples at room temperature at 3.34 T. The large ($>100
Externí odkaz:
http://arxiv.org/abs/2207.11961
Autor:
Carr, Stephen, Snider, Charles, Feldman, D. E., Ramanathan, Chandrasekhar, Marston, J. B., Mitrović, V. F.
We present a methodology for probing the details of electronic susceptibility through minimally-invasive nuclear magnetic resonance techniques. Specifically, we classify electron-mediated long-range interactions in an ensemble of nuclear spins by rev
Externí odkaz:
http://arxiv.org/abs/2110.06811
Autor:
Cupo, Andrew, Cobanera, Emilio, Whitfield, James D., Ramanathan, Chandrasekhar, Viola, Lorenza
We establish the theoretical foundation of the Floquet graphene antidot lattice, whereby massless Dirac fermions are driven periodically by a circularly polarized electromagnetic field, while having their motion excluded from an array of nanoholes. T
Externí odkaz:
http://arxiv.org/abs/2108.06472